2015 Model S Base Audio Package 1 front door speaker No Sound/no speaker signal input

[hose]

Hi,

I wanted to upgrade my door speakers, and I noticed the left front door speaker was not working. I replaced it with the new one, and still no sound. When I measure the output (multi meter) of the connector it has no voltage or resistance.

Is my mcu1 amp for that specific speaker dead? If input the audio balance slider to the left front, I only hear the tweeter, but if I put the volume above 7 that one stops working (until I reboot, the tweeter works again)

Any idea? Thanks!!!

 

[beatle]

Could be the amp, or it could be a loss of continuity in the speaker wire.

 

[hose]

I just replaced it with a new MCU2, same issue…. Does anyone have an overview of the connectors in the door?