I want to change the stock stero in my CLK 500. I hate it. My sister just got a 325i BMW (I tried to get her into a c230 !) and her stock radio rocks. The mercedes radio and speakers are weak; is there any online documentation on removing the dash so I could take a look to see what I could do? I want to leave the stock HC as is (not to kill the concierge service) and want to put a Pioneer DVD in the second DIN. Ideas anyone?