I'm sure this question has been asked a million times. What do I need to install my CD player (Pioneer DEh3500) Been to three places and everyone is busy due to the xmas season. Got fed up. Spent over three hours running around town in rush hour traffic and did not get a single question answered. I have the stock system in it now. There are "best buy, circuit city, wal mart, kmart" around here. Part numbers would be awesome.