Identifying a plug/wire, under-hood fuse box area

Auxiliary PIAA reverse lights died after 11 years. I would like to identity this green wire in the fuse box area, I think it's where we grabbed 12v switched power? The insulation was scratched, so I would like to know what it is in case there are problems in the future.

I searched, but figure someone will know faster than I can find it on-line. White plug shown here, green wire is in the front passenger corner. Front of truck is to the left.

Thanks!




Electrical tape on the green wire:


Unplugged:

 

Your on Connector EB1 Pin 3 which is switched Ignition Power to the Alternator from the IG1 No2 Fuse (10A) in the Drivers Side Junction Box.

 

That's great, thanks so much!