I am converting my G to a GSL thanks to a mostly intact 84 GSL. I have swapped the rear hatch, for the wiper and both doors, for power windows and mirrors. I need some help on the wiring, Where's the switch for rear wiper located?
Soon, i'm gonna swap my rear end for the GSL's disc brake LSD rear.

Thanks to you all who helped me so much, one stupid post at time ,

 

the switch for the rear wiper is just behind the left side power window. behind the right side is the cruise control activation switch.

 

Unless I am on the wrong page or something, it is one of the two rocker switches on the right side of the dash cluster, the other rocker is for the defroster.