Mr12Volt P2000 - Carplay/Android Auto w/M.O.S.T *New Model Update*

[2008M36MT]

Originally Posted by tdott

Wait, why did you do coding if it was already working? Maybe it was something related to the coding you did.

I needed to reset the airbag light but noticed there were also codes for the CIC and various other things, so I reset all of them.
The next time I got in the car Bluetooth and WiFi connected to the Mr12volt but the Mr12volt logo did not come on the screen. I went into BimmerCode to see if my code clearing also reverted the CDMM coding to stock. It didn’t, but I changed back to factory and then coded the cd charger once again. Nothing.

[tdott]

Originally Posted by 2008M36MT

I needed to reset the airbag light but noticed there were also codes for the CIC and various other things, so I reset all of them.
The next time I got in the car Bluetooth and WiFi connected to the Mr12volt but the Mr12volt logo did not come on the screen. I went into BimmerCode to see if my code clearing also reverted the CDMM coding to stock. It didn’t, but I changed back to factory and then coded the cd charger once again. Nothing.

Yea still sounds like something is not connected, I would recheck connections.

[dreadedN43]

Just put mine in, here are some photos for anyone looking to install this as well

I tried to connect everything without coding, but it didn't work without setting CDMM_CHANGER_3 to mp3_cdc.
And I scratched up some interior trim while putting the CIC back in, the rag I used to cover it up was too small. Like others said you have to push the main harness into the pocket on the right.

Initially I was hoping to put the unit right above the glovebox and the fuses

But it was blocking the "ear" on the glovebox


Looking at the original post I don't think that "ear" serves any purpose, I thought about just snapping it off but settled on putting the unit a bit to the left. I didn't want to push it further in, as it would be blocking the airflow from the blower motor I think.

If only the unit had mounting points or was a bit slimmer so it would fit between those metal support posts

I put everything back together but the display was blank as I switched over to the unit. Turns out those dip switches got pushed up as I was putting the glovebox back in. Everything worked after resetting them back to 0.

I have a dashcam with a rear camera with a video-out plug (https://www.ebay.co.uk/itm/256309521503). The output is all messed up though, (shows front and rear dashcam, some text info...). I'll have to check the settings on the dashcam itself.

[SamOye]

Anyone gotten the front camera to work on a manual car?

[gans1992]

Okay, I wanted to make a backup camera wiring guide if you want to use a 12v Relay. In my case, I have a 6-speed manual E92 M3 with no PDC so this is a good way to do it if you want to maintain a consistent 12v of power when tapping into the reverse light. If you have a DCT or a 6-speed manual with PDC, I do not believe you need to do this. I purchased the GreenYi camera that is very popular for the Mr12Volt unit. This is not a guide on installing the camera itself or routing wires, there are other guides out there for that. The biggest pain for me was snaking the wires through the rubber boot (especially the RCA plug)

DISCLAIMER
I know this is not the best or most thorough guide, but please send me a DM if you have questions. I'm not one of those guys that remembers to film or take pictures during an install so all I have is this write up.

I first need to give credit to https://www.m3post.com/forums/showpost.php?p=27087805&postcount=6 which I used as a guide.

Before you start, ensure you buy all your necessary wiring items such as (I gave some Amazon links, but you should be able to buy these at your local autoparts store):
- 12V relay
- Mini inline fuse holder with 7.5a fuse
- Extra wire (16-18 gauge wire should be enough)
- Spade connectors
- Ring connectors
- Wire Connectors (up to you what you want to get or solder is an option as well)
- Wire Tap (I used Posi-tap connectors)

First off in the Mr12Volt settings, go to Car Settings and ensure Camera is set to Aftermarket 360 and Reverse Condition is set to Reverse State.

Coming off your backup camera you will have two connections, one for video (RCA female) and one for power (barrel plug). You will also have two cables. One cable will be a male RCA jack with a pigtail for power coming off it. The other cable will be the power cable with red/black wires.

1. Disconnect the negative terminal of your battery
2. Attach RCA plugs together for video
3. Attach barrel plugs together for power
4. Cut a few feet of extra wire and splice it on the pigtail coming off the RCA cable
5. Route that wire, the black/red wire for power and the other end of the RCA plug down into the lower trunk area through the rubber boot (this part is a pain in the a**)
6. Once you've routed it through, twist the wire you spliced to the pigtail and red power wire together and attach it into a spade connector and crimp on.
7. Attach this to #87 on the relay
8. Cut some wire and twist one side onto the end of the black wire you routed down. Attach it to a spade connector, crimp it on and then attach it #85 on the relay. On the other side of the wire you cut, crimp on a ring connector.
9. Get you mini inline fuse and snip it in the middle. One end crimp on a spade connector and the other end crimp on a ring connector. The spade connector will attach to #30 on the relay.
10. Get your Positap and tap into the reverse light wire. In the E92 M3 atleast, the harness is near the battery compartment and it's the black wire with blue stripe. The issue here is that there are 2 black wire/blue stripes on that connector so you need to test to understand which one is the reverse light wire. Once you tapped into the reverse light wire, cut some wire and attach one side into the posi-tap and the other side crimp on a spade connector and attach it to #86 on the relay
11. Now attach the ring connector for the mini inline fuse to the positive terminal of the battery
12. Attach the ring connector for the ground to a chassis ground (you can use the main battery ground or potentially attach it to the battery bracket screw as well).
13. Run the RCA cable all the way to front where you have your Mr12Volt unit
14. Plug in the RCA male/female connectors together
15. There will be a green reverse light 12v wire coming off the Mr12Volt harness, find that and splice the pigtail wire coming off the RCA plug and green reverse light 12v wire together.
16. Attach negative battery terminal
17. Start car and test your camera
18. Profit! (put everything back)

[2008M36MT]

I am trying to remove the Mr12volt system in favor of a screen replacement system. Could someone please tell me where the noncontroller side of the CIC controller cable is supposed to be plugged into (the connector with the purple and white cables) if I were reverting to stock configuration?

Right now it’s plugged into the bundle of cables for the Mr12volt with the white plug that goes into the back of that unit but that’s coming out.

Thank you all!

[2008M36MT]

Originally Posted by 2008M36MT

I am trying to remove the Mr12volt system in favor of a screen replacement system. Could someone please tell me where the noncontroller side of the CIC controller cable is supposed to be plugged into (the connector with the purple and white cables) if I were reverting to stock configuration?

Right now it’s plugged into the bundle of cables for the Mr12volt with the white plug that goes into the back of that unit but that’s coming out.

Thank you all!

Good riddance Mr12volt. Figured out that the other side was just Mr12volt connector.

The Amazon system has now been installed. We’ll see how long it lasts but here are impressions so far.

- Boots up and shuts down almost instantly. My car is not connected to Bluetooth for 10-15 minutes after locking like it is with Mr12volt.
- Scrolling through menus seems smoother and quicker
- no more annoying crackles coming from the speakers
- touch screen that is brighter and more vibrant
- mic sound quality is slightly worse, people complain of hear of static other side. However people constantly complained about the native Mr12volt mic. Good thing is I don’t have to route it, it’s built in.

The only good thing from what I can tell that Mr12volt does is keeps the native screen which has a slightly better fit. I don’t know what reliability will be like either but for $269 vs $400 and the fact that I don’t have to reconnect every wire is a win in my book.

If I was doing this all over again I’d do the Amazon option first without question.

[Thumbie]

How is the sound quality when playing music?

[pathall1]

Originally Posted by 2008M36MT

Good riddance Mr12volt. Figured out that the other side was just Mr12volt connector.

The Amazon system has now been installed. We’ll see how long it lasts but here are impressions so far.

- Boots up and shuts down almost instantly. My car is not connected to Bluetooth for 10-15 minutes after locking like it is with Mr12volt.
- Scrolling through menus seems smoother and quicker
- no more annoying crackles coming from the speakers
- touch screen that is brighter and more vibrant
- mic sound quality is slightly worse, people complain of hear of static other side. However people constantly complained about the native Mr12volt mic. Good thing is I don’t have to route it, it’s built in.

The only good thing from what I can tell that Mr12volt does is keeps the native screen which has a slightly better fit. I don’t know what reliability will be like either but for $269 vs $400 and the fact that I don’t have to reconnect every wire is a win in my book.

If I was doing this all over again I’d do the Amazon option first without question.

Which Amazon system did you go with? Does it use the fiber optic connection for audio, or the aux jack? Interested to hear about the model you purchased.

[eljay]

2008M36MT
I'm trying to PM you, but your inbox is full.
Can you pm me?

[eljay]

Originally Posted by 2008M36MT

Good riddance Mr12volt. Figured out that the other side was just Mr12volt connector.

The Amazon system has now been installed. We’ll see how long it lasts but here are impressions so far.

- Boots up and shuts down almost instantly. My car is not connected to Bluetooth for 10-15 minutes after locking like it is with Mr12volt.
- Scrolling through menus seems smoother and quicker
- no more annoying crackles coming from the speakers
- touch screen that is brighter and more vibrant
- mic sound quality is slightly worse, people complain of hear of static other side. However people constantly complained about the native Mr12volt mic. Good thing is I don’t have to route it, it’s built in.

The only good thing from what I can tell that Mr12volt does is keeps the native screen which has a slightly better fit. I don’t know what reliability will be like either but for $269 vs $400 and the fact that I don’t have to reconnect every wire is a win in my book.

If I was doing this all over again I’d do the Amazon option first without question.

Could you pm me when you clear your inbox?

[halcyon447]

I just got mine installed and everything except the backup camera works perfectly. I have an e92 6MT with PDC. I have mr12volt set to Aftermarket camera and Parking Key trigger. The reverse screen triggers and I see the dynamic parking lines + the mr12volt pdc graphic but I cannot get the camera feed to display no matter what I try. I currently have the RCA cable plugged into the female connector on mr12v + the pig tail wired to Rear camera power & on the other end I have RCA plugged into the camera and the pig tail of the RCA on the camera end wired to the positive of the power cable. I have tried it with grounding the ground cable on the power as well as without. I have the greenyi 1080p. I have also tried in both camera modes (AHD + CVBS) by cutting the white wire on the camera loop. I have also tested trying to power the camera straight from the battery. Nothing works I am left with a black screen with only parking lines + pdc graphic. Mr12v support says to disconnect it and tap into the reverse light but I have seen others saying they have done it without as PDC triggers the camera just fine so I thought I'd check here before going that route. Any thoughts are very appreciated. It's the last thing to make this install completely functional. Cheers!

[Thumbie]

Originally Posted by halcyon447

. I have the greenyi 1080p. I have also tried in both camera modes (AHD + CVBS) by cutting the white wire on the camera loop. I have also tested trying to power the camera straight from the battery. Nothing works I am left with a black screen with only parking lines + pdc graphic. Mr12v support says to disconnect it and tap into the reverse light but I have seen others saying they have done it without as PDC triggers the camera just fine so I thought I'd check here before going that route. Any thoughts are very appreciated. It's the last thing to make this install completely functional. Cheers!

Sounds like you have it hooked up correctly. But check the settings in mr12volt menu, those don't sound right.

If they are right: Did you connect to reverse light to trigger power? I know you have PDC so hypothetically shouldn't need to but could be worth a try...

I have same setup and didn't need to cut either green or white wire.

[halcyon447]

Originally Posted by Thumbie

Sounds like you have it hooked up correctly. But check the settings in mr12volt menu, those don't sound right.

If they are right: Did you connect to reverse light to trigger power? I know you have PDC so hypothetically shouldn't need to but could be worth a try...

I have same setup and didn't need to cut either green or white wire.

Thanks for the clarification on green/white.
I’ve attached the settings.

Parking key is supposedly the PDC; sensed by Mr 12volt. It does trigger the reverse screen just fine.

I have just metered the power out wire (red) on mr12volt and it’s only outputting ~11.3v so I’m wondering if it’s just not enough for some reason to power the camera? When I meter the pigtail off the RCA in the trunk it’s only reading 10.0v

[tdott]

Originally Posted by halcyon447

Thanks for the clarification on green/white.
I’ve attached the settings.

Parking key is supposedly the PDC; sensed by Mr 12volt. It does trigger the reverse screen just fine.

I have just metered the power out wire (red) on mr12volt and it’s only outputting ~11.3v so I’m wondering if it’s just not enough for some reason to power the camera? When I meter the pigtail off the RCA in the trunk it’s only reading 10.0v

Sorry silly question, but just wanted to double check, have you tried this while starting the car? Just wanted to make sure it's not a low battery issue.

[halcyon447]

Originally Posted by tdott

Sorry silly question, but just wanted to double check, have you tried this while starting the car? Just wanted to make sure it's not a low battery issue.

Yep. I finally got at least a crappy signal to come through. (Attached)

It’s a double image in greyscale/b&w. Fuzzy. I added a camera filter today that made absolutely no difference as others have mentioned previously.

[dwaynemosley]

Do you have a link to the Amazon solution? Thanks.

[DavesZed]

Originally Posted by halcyon447

I just got mine installed and everything except the backup camera works perfectly. I have an e92 6MT with PDC. I have mr12volt set to Aftermarket camera and Parking Key trigger. The reverse screen triggers and I see the dynamic parking lines + the mr12volt pdc graphic but I cannot get the camera feed to display no matter what I try. I currently have the RCA cable plugged into the female connector on mr12v + the pig tail wired to Rear camera power & on the other end I have RCA plugged into the camera and the pig tail of the RCA on the camera end wired to the positive of the power cable. I have tried it with grounding the ground cable on the power as well as without. I have the greenyi 1080p. I have also tried in both camera modes (AHD + CVBS) by cutting the white wire on the camera loop. I have also tested trying to power the camera straight from the battery. Nothing works I am left with a black screen with only parking lines + pdc graphic. Mr12v support says to disconnect it and tap into the reverse light but I have seen others saying they have done it without as PDC triggers the camera just fine so I thought I'd check here before going that route. Any thoughts are very appreciated. It's the last thing to make this install completely functional. Cheers!

Looks like the settings are correct on the Mr12volt

I think this is a camera issue you're having.
Firstly CVBS is correct.
Secondly I wouldn't use the trigger wire to power it. instead wire the camera to the reverse wire of your rear lights with a filter box.
Like this...
https://www.amazon.co.uk/dp/B0CZ8M4J...7ET109PCVPKKWQ
(UK link, but at least you can see what you're looking for)
This is by far the best way to power your camera, the other option is to run a separate power feed and than have a relay switched from the reverse light, but the filter will do a better job and a cleaner install.

If this still doesn't work then it's quite possibly a faulty camera.