Having problems with your 1991 Mercedes-Benz 420 ?
My 1990 420 SEL needs to connect power to a new electric aerial, can you tell me which of the three wires (red/White, brown and Blue) does what as my replacement aerial has only two wires (red and white) ? cheers
The blue wire goes to the signal to tel the wiper to go up and down like turning on an amp. Look for a open terminal for antenna power signal.
Repair Help & Product Troubleshooting for 1991 Mercedes-Benz 420
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