Adding delay wipers to a 76

[76stepsidechevy]

Id like to add delay wipers to my 76 and after some poking around I haven't come up with much info other than its possible. I picked up a switch and delay box off ebay from a 78-83 and plan to keep the 76 motor. I know I need to add a wire on the park switch in the motor but thats as far as I got. I can figure out the wiring for the 76 switch pretty easy with a meter but Im not sure how to wire up the new switch and I'd hate to burn out the delay box trying. I guess what im looking for is a pinout for the newer switch.