M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

Poor FM reception on aftermarket radio

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Old 08-25-2018, 01:27 PM
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2011 ML350 Bluetec
Poor FM reception on aftermarket radio

I decided to change the head unit with an aftermarket Android system. The unit works but I do not have antenna signal since with the small cable I have I can get a local FM station.

Q1. I have 4 coax cables coming to the OEM unit: mustard, green, blue. Which color is the FM antenna?
Q2. Which color - if any- is the reverse camera?

Per my research, the ML350 has an FM amplifier that needs to be powered.
Q3. Where do I have to apply 12V to get the FM amp powered?

See below the back of OEM unit and the main connector.

Thanks

Old 11-21-2018, 02:00 PM
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2009 ml 350
Originally Posted by Pastarnac
I decided to change the head unit with an aftermarket Android system. The unit works but I do not have antenna signal since with the small cable I have I can get a local FM station.

Q1. I have 4 coax cables coming to the OEM unit: mustard, green, blue. Which color is the FM antenna?
Q2. Which color - if any- is the reverse camera?

Per my research, the ML350 has an FM amplifier that needs to be powered.
Q3. Where do I have to apply 12V to get the FM amp powered?

See below the back of OEM unit and the main connector.

Thanks

Pin 7 on that white block tap into that's your power antenna wire.

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