I have a 1990 300E 2.6L engine and both rear speakers are not working. I had the original Becker radio and the rear speakers were not working even though the fader switch in the center console seemed to work. When thw switch was in the middle position or the rear position, the speakers don't work.

I thought it was the head unit so I replaced it with a JVC radio with four outputs for speakers. I used a wire conversion kit and wired the speakers directly and by passed the center console fader switch. The rear speakers still don't work. I haven't pulled out the speakers to test them but it seems odd that both rear speakers would be blown.

Any recommendations on what the probelm may be? Thanks.

Check if you are getting power at the rear speakers. You can go from there...

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J.H.
'86 300E

It is possible that I did not bypass the fader switch properly. Does anyone know how to bypass the switch to get the rear speakers working? Thanks.

splice the wires or run new wires to the rear speakers. Start witht basics. Are you sure you new radio has the farder to all 4 speakers? Are you connections OK? Did you exercise your farder control back and forth a few times. The console control are notorious for getting all kind of dirt and liquids under there....

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J.H.
'86 300E

Yes, I checked all the connections and everything else works fine on the radio. The radio does have a built in fader so I don't need the center switch. I clean and tried the center fader and I still don't have rear speaker sound. I would just like to bypass it but I don't know how? I don't want to run new wires to the rear speakers since that's more complicated.

the resources tap on top of this page?

I found this link there:

http://www.peachparts.com/Wikka/W124Stereo

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J.H.
'86 300E