mercedes w210 rear speakers not working

[sjoseph]

I have a 1998 Mercedes w210 diesel it has a becker 1692 head unit, a cd changer in the trunk and a phone that I believe was dealer installed. the rear door and rear deck speakers do not work I have tried swapping head units and amplifier units no luck front speakers work rear do not I have also tried using the fadar control on the radio no luck I appreciate any ideas or repair suggestions thanks you

[delsin]

The grill on mine is so brittle that it started breaking in pieces..





snaptube vidmate