Audio system problems

99FiveOh

15 Year Member
May 20, 2006
2,051
20
99
J-Ville, FL
Before I swapped to the 5.0 in my 99 the sound system sounded perfect. Had a nice bit of bass to it (not bad for the stock non Mach 460 setup).

Now, for some reason I get lots of distortion even at mid volume levels. The dash harness out of the my old 94 that I used in this car had the Mach 460 amp and wiring. I installed the bypass harness on my stereo which basically bypasses any and all factory amps and it did the same thing.

I'm at a loss here. I'm probably gonna have to run all new speaker wires because I'm not sure if something is touching or not. I doubt it since it worked perfectly in both cars prior to the swap. Could there be an issue mixing the Mach dash harness with a non Mach body harness?

If anyone has access to the wiring schematics on a 94/95 vert without Mach 460 I'd love to see it. And wiring for a 94/95 coupe WITH Mach 460. I need to make sure there's no kind of crossover/capacitor installed inline somewhere.
 
Before I swapped to the 5.0 in my 99 the sound system sounded perfect. Had a nice bit of bass to it (not bad for the stock non Mach 460 setup).

Now, for some reason I get lots of distortion even at mid volume levels. The dash harness out of the my old 94 that I used in this car had the Mach 460 amp and wiring. I installed the bypass harness on my stereo which basically bypasses any and all factory amps and it did the same thing.

I'm at a loss here. I'm probably gonna have to run all new speaker wires because I'm not sure if something is touching or not. I doubt it since it worked perfectly in both cars prior to the swap. Could there be an issue mixing the Mach dash harness with a non Mach body harness?

If anyone has access to the wiring schematics on a 94/95 vert without Mach 460 I'd love to see it. And wiring for a 94/95 coupe WITH Mach 460. I need to make sure there's no kind of crossover/capacitor installed inline somewhere.

Check the grounds in the kick panel
 
Also i forgot... Are you using stock speakers still??? IIRC they are an awkward resistance and wont work with a normal aftermarket head unit without using the mach amps.

They are basically home theater speakers... 6ohms IIRC