I have a 96 camaro z28 and it had the Bose system it. I just put an aftermarket head unit in and it was working just fine until I realized I mixed up the speak wires so I went back to fix them and hook them up to the right ones then I turned the car on to acc to see if it was working and now the car dings 2 times and the seat belt light flashes when I put it in acc and now the radio won't turn on. **

 

sounds like you might have mixed up some wires again. if you can say wire up the old stoc harness back into the car and buy the dash kit for $9 at walmart.... if you dont have your stock wiring connector anymore i have one from a bose car ill sell you

 

you could try checking the wiring according to the typical color section here
http://www.installdr.com/InstallDocs/GM/PDF/460061.PDF

I installed my stereo using crutchfield instructions and had one minor issue I think but don't remember what it was...maybe two wires were colored as what they stated maybe you moved a power wire or ground?

 

Any luck? were all the wires plugged in? Is the radio doing anything? Have you checked your fuses?

 

Check fuses first, you could have crossed some wires and blew a fuse! And if you did blow a fuse you may need to recheck your wiring... heat shrink is better than electrical tape

 

sorry it took me so long to reply. its not the radio or my wiring becuase i triple checked everything and also it wasnt just the radio not working i could even roll the wondows up too so i check everthing that could have went wrong and i didnt find anything incorrect so by the time i did all that it was dark so i called it a night and i went back in side and then 2 hours later i went back out to try it so i could roll my windows up everything worked. so idk what it could be.

 

Maybe a problem with the BCM.

 

sounds like a vatts problem... my car did the same thing...