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ML320 W164 Poor radio signal

spinworm

New Member
Joined
Nov 23, 2016
Messages
3
Car
ML320 (W164)
Hi

The radio died on me a couple of weeks ago and whilst I can get radio 2 (stationary) the scanner doesn't function and I loose the signal in anything but open countryside. I have removed the tailgate trim and located the aerial "amp" (A 164 820 16 89). I can see the local transmitter from the house, so we get a strong signal locally.

Three wires, 2 to the heated screen and a 3rd single pink (or red). Should there be 12v on this last cable, I am getting (0.4v). I ask as when the cable is detached I appear to be grounding the radio signal by touching the pin?

Cheers, Ian
 

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