I stumbled across this while trying to wire up my camper shell 3rd brake light and interior light.
I found two bundles under the spare on my old body ‘99. One was basically directly behind the license plate (first picture). The other is above and on driver side frame rail. Comes directly off the connections that go into the brake lights (second and third pic). Also, there’s some sort of white tag that says “WHT FEED BRK SW-“ attached to a white wire (fourth pic). Is this the blue wire I need? Or this white one?
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