95 Ranger audio problem.
I have a 95 Ranger that I use for maintenance. It has been a Great truck, and is still running great with over 300000 mls. My problem is the radio stopped working, so I went to the auto yard and got the same radio working, I had them play it to make sure. But when I hooked it up in the truck, It plays but has no volume. I mean you can hear it when your parked, but it won't play loud enough to hear while driving. Behind the passenger seat there is a black box that has something to do with the sound, perhaps a power booster? Could that have quit working when the original radio stopped, and is causing my volume problem? If anyone can point me in the right direction, that would be a great help. Thanks Phil.