Why use 2 switches for the speed of the wiper motor?
With your design you could have the motor energized in the low and high speed at the same time.
You will need more relay interlocking in the circuitry or aux contacts from the switches to prevent that from happening.
You covered the Park / Run deal but the 2 seperate switches for the speeds can be a problem.
Is it possible to incorporate the factory switch or will in not fit on the new dash deal?
If your looking for a new look maybe use the old switch and a new knob?
Do a Google search on Double Pole Triple Throw switches and there are a bunch that come up here is one of them:
http://news.thomasnet.com/fullstory/27458Try
www.mauser.com for an elecrtronics supply house that has switches for 12VDC.
Im an Electrical Instrument Testing Mechanic by trade. Not an Engineer but I have helped a few out with some problems in the last 20 years in the Electrical controls / Instrumentation field.
