side & rear radio speaker not working?

[armcorsino]

I have a 2000 bmw 328I, problem is my rear side door speaker
& rear speaker is not working, what can be the problem? how do I correct this?? the Front is working

[Rupe]

Old cars with fancy options tend to be a pain as they age. I'd check each speaker with an ohm meter first. (they can go bad) If they are ok then it's probably the radio itself.

Let us know what you find.