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- - AC Delco radio wiring (https://67-72chevytrucks.com/vboard/showthread.php?t=754331)

RedBed

01-07-2018 11:23 PM

AC Delco radio wiring

Switching out the AC Delco for a single DIN unit. I guess this is the POWER plug for the old radio. I assume Yellow is HOT, black is GROUND, but what is the grey?

https://lh3.googleusercontent.com/rt...4=w440-h781-no

ray_mcavoy

01-07-2018 11:34 PM

Re: AC Delco radio wiring

Yes, the yellow wire is power (switched on/off via the ignition) and black is ground. The grey wire is for the dial light. It's connected to the instrument panel light circuit so it brightens/dims as you rotate the headlight switch knob.

RedBed

01-08-2018 01:06 AM

Re: AC Delco radio wiring

OK, so it won't be needed with the new stereo.

Thanks.

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