SKIP TO NEXT PARAGRAPH FOR THE BIG QUESTION. Well the other day I saw my old JL amp and sub from my previous car just sitting around after months of trying to get them sold. So I thought why not just throw one in my e90! I didn't want to put both in because I don't really want a huge bass boom (Ideally just one 10in JL w3). So I thought one 12 would really fill the deep bass gap left by the logic7.
So I picked up a wiring kit and a technic harness. I used the e92 diy as a reference which was very helpful. I stared by attaching the power cord to the positive connection on the battery. Then I attached the ground wire to the frame, but NO POWER!
Really confused on this.
Any help would be greatly appreciated!