I have SC-815 CD player in my 97 Volvo, my cd player work but the sound only comes out of the front Driver door speeker and Rear Left door speekers only. The back speekers and the right side speekers are not working. I try to ajust it by using Trebel or feder but it did not work. what Do you think it is?
Can I do some thing about it.
F.G

The magnet from the tweeter may have fallen out of its holder and onto the bass speaker cone.

1. Remove the grill from the speaker. You'll have to access the nuts from the trunk.

2. After removing the grill, you'll probably see that the small tweeter magnet had become loose and fallen onto the larger cone.

3. I epoxyed glued the magnet back into place 3 years ago and it's been fine since.

I think the speekre is fine because I took out my wife V70 tape and try it, and it works fine but when I put my radio back it wont work.
F.G