[ramrod00]

Hey guys, I have a 1997 GT Convertible with the 460 Mach sound System but a aftermarket head unit. My problem is when I turn up the volume Sounds good but after a few seconds, Bang No Bass.Could this be the rear amplifiers letting go? Please Help. Thanks

[Lennys94]

I have a mach 460 also in my 94..Have you tried goin from one side to another? trying to determine if its just one speaker/woofer or the whole rear deck.. If its one side then 95 percent chance its the amp.. otherwise it just could be your rear deck speaker woofers goin bad..