reverse indacator light wire location

[Cratos]

I am updating to a touch screen with backup camera. I need to find the light indicator wire under the dash to trigger it, I do not see it in the wire diagram I have. Anyone know what wire it is??

 

[Miguel Duncan]

I am updating to a touch screen with backup camera. I need to find the light indicator wire under the dash to trigger it, I do not see it in the wire diagram I have. Anyone know what wire it is??

You have to look in the smaller BODY manual for this wiring. My 1972 shows it on the body 8-pin harness wire B2-18V [violet color] going to the rear backup lights / Instrument Harness side wire 18W* [white with tracer]. Hopefully your 70 is the same.

 

[Cratos]

I ended up tapping the back up light and ran the wire up front with the camera cable.