Hi, I have year 2000 s2k that I've owned for two years. The previous owner decided to upgrade components and add an amp, but he kept the stock stereo! He spliced into the factory harness and I got most of the wires to match. There are 4 that I don't know where it goes. I hooked up my alpine and it works fine now. I'll post some pictures tomorrow..i have some questions..he installed tweeter so he had two sets of rca cables hooked up to some type of converter by Peripheral Electronics. I want to get a DCI, but don't know what brand is the best...i'm sort of on a budget.

Also, I noticed that when I use my mirror adjuster, my stereo shuts off. It has always occurred.... I need to get this fix. I'm going to check the accessory fuse tomorrow since it happens when I use the accessory plug too.

Please post a picture of the factory harness with all of the wires..

 

MacGyver's page has a chart with stock stereo connector positions and wire colors.