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What are these wires? Really need help

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Old Feb 22, 2022 | 10:39 PM
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What are these wires? Really need help
‘07 W215 w/ HK

I’ve searched for this info and I can’t find what I’m looking for… a diagram of the 2 wire bundles for the oem head unit. I’m trying to figure out what these are…

Here’s the car side and radio side of the harness.




Last edited by Jhawker23; Feb 22, 2022 at 10:41 PM.
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Old Feb 23, 2022 | 02:07 PM
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Is this correct for vehicle-side wiring?

Brownish-gray PIN 5 and PIN 7 are CAN bus wires?
Brown PIN 1 is power antenna

Connects2 tech support told me the CAN was PIN 5 and 7. Their harness connects PIN 1 to solid blue out, which would be power antenna.

I know the speaker wires, just don't know the wiring on the 1st block.
Last edited by Jhawker23; Feb 23, 2022 at 02:10 PM.
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