1992 Cadillac Seville with a Boise Stereo package...

Site on sound-Audio Garage-Team Electronics-BestBuy
All said i would need a wire harness that's like $75 bucks because it has a amp and antenna hook up in the trunk? And the harness at wal-mart don't work.

Any clue and are you able to do anything with that?

Mounting kit for a 97 Olds Bravado (No place i have looked has one for the the year all the kits skip the 97?)