I was thinking about puting a 12\" sub in my M3 even though the sound is half decent, but once you\'ve had a sub you cant go without one. I dont want to change the head unit though, I like the steering wheel mounted controls and it matches the interior, I dont think an aftermarket deck would look as good. Anyway My friends told me a sub hooked up to a factory deck will sound like shit, is this true? I know they make a piece that goes on the deck to give you RCA\'S. So has anyone done this yet, and how does it sound?
Steve M3 Sedan GT W/GFX & Rear Lip Spoiler (Titanium)