Sound system help

[Lcarder]

I have a 99 GT with factory Mach 460 AM/FM/cassette and seperate CD player. I have not any modifications to the sound system nor have I touched any wiring. Just today my base simply disappeared. I was listening to a CD and it was gone. I adjusted the base all the way up, but there is virtually no difference from minimum to maximum. Any ideas what's happened?

 

[RedDaemon]

does the mach system use fuses? if so, check them

 

[Lcarder]

Thanks

Thanks; I'll check the fuses. I also can't believe I typed base......bass!!!!! Duh