How to find the power source in overhead interior light compartment?

[LeiZ]

Hi everyone,

I bought a vehicle recording camera, and when I was trying to install it behind the mirror, I just couldn't find a power source around that area.

What I look for is a 12V wire and it comes on when the car is started. Could anyone help, please?! So much appreciated.

Thank you.

PS: 07' 3.0si

[LeiZ]

Anybody? Thanks!

[big bob]

There should be one on both the rear view mirror and the RLS sensor. Should be a violet wire with a trace colour, but check the schematic before modifying the wiring. GND is always brown.

[TerminatorX5]

also, in the area of the "overhead bin" should be a 3-pin connector for the garage door opener - one of the wires there is a power on ignition... the connector, if not used for the actual door opener, should be taped off and shoved in the cavity back there - most US spec BMWs have that feature pre-wired since mid 90s

[LeiZ]

Thank you so much, guys. I will take a look at it tonight and update here later.

This forum is the best.

Originally Posted by TerminatorX5

also, in the area of the "overhead bin" should be a 3-pin connector for the garage door opener - one of the wires there is a power on ignition... the connector, if not used for the actual door opener, should be taped off and shoved in the cavity back there - most US spec BMWs have that feature pre-wired since mid 90s

[big bob]

Originally Posted by TerminatorX5

also, in the area of the "overhead bin" should be a 3-pin connector for the garage door opener - one of the wires there is a power on ignition... the connector, if not used for the actual door opener, should be taped off and shoved in the cavity back there - most US spec BMWs have that feature pre-wired since mid 90s

X3 uses the mirror for the garage door opener like the E46, there's no 3 pin connector for an UGDO module.