Just had the car painted and the shop mixed up the tail light wires. I searched and found a diagram for a 71, however the wires are different colors. Anyone have a diagram for a 75/76?

This may be helpful:

http://www.pelicanparts.com/914/914_electr...al_diagrams.htm

how about a simple test light or a multimeter. that way you don't need a wiring diagram

A diagram assumes that you 30+ year old car has not had modifications to the existing wiring.
That is why I always check the wiring with a test light or multimeter with or without a diagram