Pioneer Nav illumination wiring

[ledkins2007]

Installed a Pioneer AVIC-z140BH in a 06 with non lux bose with a GMOS 100. Any ideas on where I can tie my illumination wire to so my nav screen will switch over when my lights come on.

 

[kses123]

I believe it is the Brown/White wire in the larger radio connector.

 

[03YukonNH]

I believe it is the Brown/White wire in the larger radio connector.

Just an fyi, the brown/white wire will work as this is what I used but the voltage on the wire changes with the dimmer switch in the truck. So when the dimmer is on full to about 1/2 way you will have dimmed lights on the Pioneer head unit. But once you start going below 1/2 way on the dimmer, the voltage drops and the pioneer interprets this as a LOW and the brightness on the pioneer goes up.