BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > M3 (E90 / E92 / E93) > Regional Forums > USA - Northwest
 
Evolve Automotive
Post Reply
 
Thread Tools Search this Thread
      03-01-2013, 02:56 AM   #1
rentonrider
Banned
6
Rep
412
Posts

 
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

iTrader: (2)

Garage List
2011 BMW M3  [3.50]
DIY: Amp + Subs with Technic Harness & LC2i

Okay folks here's my DIY to install an amp + subs. This DIY is only for those with enhanced premium sound (EPS).

Prerequisites and Materials
A) Determine if your car has EPS by running your vin at bmwvin.com. Enhanced Premium Sound is S752A (Individual audio system).
B) Order your Technic harness and LC2i from Technic. $145 shipped I think.
C) Purchase 2 amp kits, 1 for LC2i and 1 for aftermarket amp. These should include power, ground, remote, rca, speaker cables, etc. Spent about $50ish
D) Buy aftermarket amp and subs. Cartoys has a special right now which I didn't buy but it's a good deal. Two 10's kenwood subs, box, and kenwood amp for $299.

Install Steps
1. Once you get the technic harness you need to put it together. For some reason it was confusing as hell so I labeled all components and sent it to Technic for a dummies explanation. It was worth it because here's the key he gave me.

* B1 -> E1
* B2 -> A3
* A1 -> A2 (if adding aftermarket sub only) / C2 -> A1 (if underseat woofers are replaced with aftermarket sub)
* D1 -> E2
[IMG]http://i1258.photobucket.com/albums/ii529/*********/TechnicKit_zpsbae0586c.jpg[/IMG]


2. Provide remote turn on to LC2i. To do this, remove the rear passenger seat bolster (Yank really hard from bottom, wiggle a little, and pull up and out). Once bolster is off, locate the remote wire to tap. There are 2 black wires. You want to tap into the smaller black wire in the picture. Once tapped, run the wire to the trunk area to use later. I used the following link to figure out which wire to tap.
http://www.m3post.com/forums/showpos...3&postcount=49
[IMG]http://i1258.photobucket.com/albums/ii529/*********/remote_zpsb9e7e175.png[/IMG]


3. Remove trunk sidings and center cover. Google search it how to do this. It's easy. I removed everything to make it easier to wire it all up.


4. Unplug OEM harnesses from OEM amp. There are 1 or 2 other smaller harnesses. Unplug the smaller harnesses and get them out of the way. Now unplug the big harness by sliding the harness to the right. Btw, OEM amp is located on the left side of trunk.
[IMG]http://i1258.photobucket.com/albums/ii529/*********/oemharness_zps89cb5f25.jpg[/IMG]


5. Plug OEM harness into Technic harness and then Technic harness into OEM amp.


6. Provide LC2i 12v power, ground, and remote in. Remote in is from step 2 above.


7. Wire the remote out from LC2i to aftermarket amp remote.
[IMG]http://i1258.photobucket.com/albums/ii529/*********/LC2i_zps5bb4fcf0.jpeg[/IMG]


8. Run RCA from LC2i to aftermarket amp

9. At this point you just have to provide power and ground to the aftermarket amp. Run speaker wires from amp to subs.

10. I mounted the amp to right behind the sub box. I mounted the LC2i right next to the OEM amp. Below is the end result. I'll take more pictures soon.
[IMG]http://i1258.photobucket.com/albums/ii529/*********/photo_zpscbaddd98.jpg[/IMG]

Last edited by rentonrider; 03-01-2013 at 03:04 AM.
Appreciate 0
      03-01-2013, 11:50 AM   #2
kerrit
Lieutenant
5
Rep
444
Posts

 
Drives: 2008 Melbourne Red E90 M3
Join Date: Jul 2012
Location: Bellevue, WA

iTrader: (3)

Garage List
thanks for the write up - does it complement the stock EPS system well?
Appreciate 0
      03-01-2013, 11:53 AM   #3
rentonrider
Banned
6
Rep
412
Posts

 
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

iTrader: (2)

Garage List
2011 BMW M3  [3.50]
Quote:
Originally Posted by kerrit
thanks for the write up - does it complement the stock EPS system well?
Pretty well. I need to get it dialed in but yeah it sounds good. I mean eps sounds great as is but I felt it lacked a little bass. This is great for the price.
Appreciate 0
      03-01-2013, 12:47 PM   #4
THE TECH
BimmerPost Supporting Vendor
THE TECH's Avatar
United_States
157
Rep
13,121
Posts


 
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas

iTrader: (45)

Garage List
Send a message via AIM to THE TECH Send a message via Skype™ to THE TECH
Nice install.
__________________
Appreciate 0
      03-01-2013, 01:15 PM   #5
tha_good_life
Brigadier General
tha_good_life's Avatar
United_States
68
Rep
3,914
Posts

 
Drives: 2010 JzB E92 M3
Join Date: Jul 2008
Location: Seattle

iTrader: (18)

Garage List
2010 BMW M3  [4.33]
WOW, talk about some BOOM! Dub 7s?!
Appreciate 0
      03-01-2013, 01:17 PM   #6
rentonrider
Banned
6
Rep
412
Posts

 
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

iTrader: (2)

Garage List
2011 BMW M3  [3.50]
Dub 10's.. I'll take better pictures this weekend . I need to get it dialed in though. Just too much boom right now.
Appreciate 0
      03-01-2013, 01:41 PM   #7
M3Hotness
Private First Class
M3Hotness's Avatar
2
Rep
101
Posts

 
Drives: 2013 BMW 335i Xdrive Msport
Join Date: Sep 2012
Location: Kent, WA

iTrader: (3)

Great write up Kao! I'll be hitting you up soon to code my uncle's new e90. Also want to check out how harsh the H&R springs ride is, been contemplating on Form > Function.
Appreciate 0
      03-01-2013, 01:46 PM   #8
rentonrider
Banned
6
Rep
412
Posts

 
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

iTrader: (2)

Garage List
2011 BMW M3  [3.50]
Quote:
Originally Posted by M3Hotness View Post
Great write up Kao! I'll be hitting you up soon to code my uncle's new e90. Also want to check out how harsh the H&R springs ride is, been contemplating on Form > Function.
Cool you got my number. We'll zap it and give him a decal too.

As for H&R in my opinion and i learned the hard way, don't do it. It's pretty harsh. Honestly I feel like I can't drive it like an M. If anything go with the whole coilovers setup, etc but that cost $$. Then again maybe my shocks are going bad? My car has 30k miles on it but as soon as the springs were installed I didn't like the ride. Looks great though.
Appreciate 0
      03-01-2013, 01:51 PM   #9
THE TECH
BimmerPost Supporting Vendor
THE TECH's Avatar
United_States
157
Rep
13,121
Posts


 
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas

iTrader: (45)

Garage List
Send a message via AIM to THE TECH Send a message via Skype™ to THE TECH
Quote:
Originally Posted by rentonrider View Post
Cool you got my number. We'll zap it and give him a decal too.

As for H&R in my opinion and i learned the hard way, don't do it. It's pretty harsh. Honestly I feel like I can't drive it like an M. If anything go with the whole coilovers setup, etc but that cost $$. Then again maybe my shocks are going bad? My car has 30k miles on it but as soon as the springs were installed I didn't like the ride. Looks great though.
I have zero complaints with my H&Rs.
__________________
Appreciate 0
      03-01-2013, 01:56 PM   #10
rentonrider
Banned
6
Rep
412
Posts

 
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

iTrader: (2)

Garage List
2011 BMW M3  [3.50]
Quote:
Originally Posted by THE TECH
I have zero complaints with my H&Rs.
I have h&r race with e36 bump stops. Car has competition package. Could it be my shocks are going bad?
Appreciate 0
      03-01-2013, 03:14 PM   #11
Transfer
Lieutenant Colonel
Transfer's Avatar
United_States
24
Rep
1,689
Posts

 
Drives: SQ5, X1
Join Date: Mar 2010
Location: Seattle, WA

iTrader: (0)

Quote:
Originally Posted by bape_sta206 View Post
WOW, talk about some BOOM! Dub 7s?!


Quote:
Originally Posted by rentonrider View Post
Dub 10's..

What series JL is the question. lol Looks like W3 to me.
Appreciate 0
      03-01-2013, 03:31 PM   #12
rentonrider
Banned
6
Rep
412
Posts

 
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

iTrader: (2)

Garage List
2011 BMW M3  [3.50]
oh lol.. sorry, dub 3s (W3's)
Appreciate 0
      03-01-2013, 10:26 PM   #13
tha_good_life
Brigadier General
tha_good_life's Avatar
United_States
68
Rep
3,914
Posts

 
Drives: 2010 JzB E92 M3
Join Date: Jul 2008
Location: Seattle

iTrader: (18)

Garage List
2010 BMW M3  [4.33]
Quote:
Originally Posted by Transfer View Post



What series JL is the question. lol Looks like W3 to me.
Quote:
Originally Posted by rentonrider View Post
oh lol.. sorry, dub 3s (W3's)
I was like WOW, they make W10?! LOL That's how out the game I am.
Appreciate 0
      03-01-2013, 10:34 PM   #14
rentonrider
Banned
6
Rep
412
Posts

 
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

iTrader: (2)

Garage List
2011 BMW M3  [3.50]
Haha. I'm multitasking at work.. What's the latest? W7?
Appreciate 0
      03-04-2013, 10:50 AM   #15
THE TECH
BimmerPost Supporting Vendor
THE TECH's Avatar
United_States
157
Rep
13,121
Posts


 
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas

iTrader: (45)

Garage List
Send a message via AIM to THE TECH Send a message via Skype™ to THE TECH
Quote:
Originally Posted by rentonrider View Post
I have h&r race with e36 bump stops. Car has competition package. Could it be my shocks are going bad?
I have the same setup except I am not using the Race ones. This is likely where our cars differ.
__________________
Appreciate 0
      03-04-2013, 04:44 PM   #16
Carrozzeria
Lieutenant
Carrozzeria's Avatar
19
Rep
510
Posts

 
Drives: BMW E92 M3 / BMW E46 M3
Join Date: Feb 2013
Location: Kirkland, WA

iTrader: (0)

very nice write up. Thanks kao!
Appreciate 0
      03-04-2013, 11:59 PM   #17
rentonrider
Banned
6
Rep
412
Posts

 
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

iTrader: (2)

Garage List
2011 BMW M3  [3.50]
Quote:
Originally Posted by Sales@Carrozzeria
very nice write up. Thanks kao!
Thx! Been meaning to take more pics but car is in shop getting diff replaced.
Appreciate 0
      03-12-2013, 09:22 AM   #18
BikeGeek
Captain
BikeGeek's Avatar
United_States
6
Rep
650
Posts

 
Drives: '12 sinister CTS-V coupe
Join Date: Feb 2012
Location: Plano TX

iTrader: (9)

Nice setup! I just finished building a sealed box, false wall and running the electronics in my car. I also bought Technic's harness/LC2i kit for plug n' play. Everything I put in is quick disconnect and comes out quick for track days. The only area I am having trouble with is visually locating the remote wire behind the seat bolster. I found the coax and several black wires but they all seem to have stripes on them. The volt meter comes out today to wrap this up.

I bet those W3's sound great. I went with 2x 10w6v3's and HD750/1. Ready to be a basshead once again.
__________________
2009 BMW E92 M3 | Jet Black / Fox Red, Extended - SOLD | Akrapovic Evolution - SOLD | MS Filter | StopTech ST60 / ST40, yellow | KW CS | 90mm stud conversion | 18x10F 18x10.5R HRE R43, Continental rubber | IND appearance package incl. key delete | JL Audio 10W6v3 (2) / HD700/1, Technic's harness
Appreciate 0
      03-12-2013, 11:23 AM   #19
rentonrider
Banned
6
Rep
412
Posts

 
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

iTrader: (2)

Garage List
2011 BMW M3  [3.50]
Quote:
Originally Posted by BikeGeek
Nice setup! I just finished building a sealed box, false wall and running the electronics in my car. I also bought Technic's harness/LC2i kit for plug n' play. Everything I put in is quick disconnect and comes out quick for track days. The only area I am having trouble with is visually locating the remote wire behind the seat bolster. I found the coax and several black wires but they all seem to have stripes on them. The volt meter comes out today to wrap this up.

I bet those W3's sound great. I went with 2x 10w6v3's and HD750/1. Ready to be a basshead once again.
Do you have enhanced premium sound?
Appreciate 0
      03-12-2013, 02:27 PM   #20
BikeGeek
Captain
BikeGeek's Avatar
United_States
6
Rep
650
Posts

 
Drives: '12 sinister CTS-V coupe
Join Date: Feb 2012
Location: Plano TX

iTrader: (9)

Quote:
Originally Posted by rentonrider View Post
Do you have enhanced premium sound?
NM I found it. Tired eyes last night. Everything is hooked up and works as expected!
__________________
2009 BMW E92 M3 | Jet Black / Fox Red, Extended - SOLD | Akrapovic Evolution - SOLD | MS Filter | StopTech ST60 / ST40, yellow | KW CS | 90mm stud conversion | 18x10F 18x10.5R HRE R43, Continental rubber | IND appearance package incl. key delete | JL Audio 10W6v3 (2) / HD700/1, Technic's harness
Appreciate 0
      03-12-2013, 02:36 PM   #21
rentonrider
Banned
6
Rep
412
Posts

 
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

iTrader: (2)

Garage List
2011 BMW M3  [3.50]
Sweet.. Glad u got it working.
Appreciate 0
      03-13-2013, 03:29 PM   #22
rentonrider
Banned
6
Rep
412
Posts

 
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

iTrader: (2)

Garage List
2011 BMW M3  [3.50]
What did you use for quick disconnect?
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 11:32 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST