I recently bought a 94 gt. So far i have put offbrand flowmasters and pipes from the first cats back, tune up, two injectors, distriburter cap, fuel pump, fuel filter, and transmission filter. I drove it tonight and was just gonna play and do a burn out, when i mashed on the brake and gas there was a backfire and it stalled down and when i let out it was allright. after i put the trans filter in the speedo quit working. also whoever had the car before we butchered the radio wiring harness along with another harness need a diagram of the wiring.

 

anyone have any idea?

 

Sounds like you bought a lemon to me...

 

Might have unplugged the speed sensor while under car. veryuseful.com has the radio wiring you seek.