Haha yep, that was the 1st thing I noticed when I got into it after work today, no DSP button like the other ones have in the pics I've seen. It's funny how you can drive something every day and look at it every day and then not know what the hell is on there. So yeah, basically what I want to do is take out the BMW business CD and throw in a single DIN basic Pioneer unit into that slot. I know I'll need the plastic housing piece but as far as the electronics go I'm not sure if it's plug and play or not. I just really want to have easier access to the iPod and a legit AUX input. I don't really care about bluetooth TBH.