I have a 95 GT with a mach stereo system and it came with an aftermarket stereo which i took out. Im going to be selling it soon, so i installed a factory AM/FM/Cas stereo from another ford (not a mustang) and I can barley hear music even at max volume its all treble and no bass. What do i have to do to make it louder?

 

You might have the same problem I've got, with the factory stereo having an internal x-over and sending out the bass frequencies on separate channels.

https://mustangforums.com/m_306645/tm.htm

Depends on what model stereo you got, and as I've found out, there's no shortage in the Ford arsenal.

Dan