I went to my custom audio/video shop today to get an estimate.<br> <br> He was thinking about 2 amplifiers in the back, all new speakers in teh cabin, 1 10' sub hidden under the passenger. Then an lcd screen i the glove box, with the dvd player/changer in the truck.<br> <br> My question is, The headunit will still control all the audio stuff, but Doesn't MB use the same wire to control other things, such as brakes, lights, audio....etc...<br> <br> Would this install be dangerous to the car?<br> <br> On a side notes, where can i buy brabus stuff in the US? I want brabus floor mats, the quad exhaust, as well as a set of monoblock VI multi.<br> <br> My MB dealer certainly doesnt sell them. I found a random car shop (looked like one for import racers) that can order it for me. But if they installed that kind of stuff, would it void any kind of warrenty.<br> <br> thanks in advance for the help, as for I just found this website today.