Thanks very much Bob, Kevin, others,
I spent time last night studying all the parts, thinking as critically as I could and thinking about this whole she-bang from start to finish. There were some aspects I missed and now I believe I've sorted them. Sorry for any confusion. Another realization...this circuit is going to take 3 relays. Why 3? Two will be required for the delay circuit and one will be dedicated for the regular low/high function. The rotary switch contacts aren't rated highly enough for the wiper motor's current and while the park circuit relay can be shared with all functions, I think it will be easier to use another relay for low/high. Could I have just bought a heavy duty rotary switch? Yes, but the imported Bosch style relay is less than 1/10 of the cost of that switch. Hopefully tonight I'll have a working circuit incorporating everything. Thanks again!
