DIY - Subwoofer connection
Hi guys, I'm looking into adding just a single subwoofer + amp into my trunk. I have the amp already connected to the box housing the sub. I was wondering if there was a DIY available for wiring the amp to the stock radio. I have a 2011 E92 M3, but I do not have the premium entertainment/sound package.
I've tried doing some searches, but what I find is mainly for systems that have the premium entertainment package or for people simply replacing the existing subs or door speakers.
Any help would be greatly appreciated.