thats because the gm radios suck. and ive never had one that lost anything but the stupid chimes. im not sure why anyone would make it so difficult to put the wires back though, the adapters are like 10-20 bucks

Thanks for all your information. It has become such an ordeal for what I thought was going to be a simple thing. I would have originally wired in a cd player for this car but the area my daughter works in is so bad for cd theft and I knew that no one would ever steal a factory gm radio. Why GM put a theftlock on their radios are beyond me. No one wants them, except someone like me I guess. I hate having to give up. My mother always called me hard-headed and she was so right. But my forehead is getting sore from all the banging.

The wiring has to be there somewhere..I ended up rewiring the speakers and HU in my 93 silverado.Bypassed all the stock stuff and all the wiring in there is mine.Short of the power and constant wires..

The theft lock II system unfortunately prevents me from just creating my own wires because the dealership has to install VIN number into radio and it can not be done without everything hooked up properly... Why did GM ever think that someone would want to steal their radios?!! I have searched the internet even looking for a video or a pictorial that shows installation of a radio hoping to catch a glimpse of the radio harness but to no avail. Guess I will slap a bandage on my forehead and keep on looking.

by the time you get the connectors, a used radio, and have the thing programed you probably could buy a aftermarket HU. and even the $120 units like the sony HD have, mp3, hd and sound at least twice as good as the original that will probably have the display out a week after you get it going.

Personally i would get on craigslist.find and older aftermarket HU and put it in as most people wouldnt steal an old HU and it would still serve its purpose