I have a 2000 Mustang with a mach 460 system. The speakers on the right don't seam to have any bass and when I turn the Bass past half the right side speakers shut off. Is this the right side amp is bad or is it something else? The speakers on the left seam to work normal.
Sounds like you may have a weak right channel in the amp. You can use the info above to pull the amp and see it it is a loose connection. Not really sure but replacing the whole system if you have the funds would be the easiest thing to do.