I purchased my '99 GT 3 months ago and the stereo was missing. I just bought a factory mach 360 so that it would be any easy plug in...BUT we turned it on and it has nothing but treble?! There is absolutely no bass!! We checked and found that power was going to the amps in the trunk and the speakers...so what could be the problem?? Please help!! Sounds awful!!
Thanks!!
Thanks!!