I have a 2004 clarion dxz745mp deck. Perfect match for the LEDs of the dash color, has an aux port that I've run into the little sunglasses cubbie (for my ipod) It uses cenet so you can hook 2 6-disk changers, sirius, TV Tuner/screen ready, and sounds great. I have it hooked to the stock amp and added a bazooka 10" sub in the trunk. Stock speakers elsewhere. It sounds great and looks wonderful also.
I researched a LOT for this. The entire package, with sat, 6-disk, labor for install, etc. was less than $1000. I put the SAS sub in myself after asking the installers to leave me a line-level and remote power wire in the trunk (took 45m)
Highly recommended E36 stock replacement. The 2005's I've seen don't look as good.