Are you talking about the fan speed that cools the cabin…. It could be the switch, but most likely a blower motor fan control. I believe the resistor that limits voltage to the motor has failed…. my p5 did that as well. I don’t think I fixed it either.So I found that the cooling fan motor is not working properly. Seems to not work on the low speed. I'll need to do some testing this weekend to make sure that it is a fan issue.
Also the new tires are chewing the front inner liners so that's another job I need to look at.
Sucks! Mine got swiped last year in Florida….I started building my own out of a plastic intake from a BMW. Mocked up and tried, adjustments needed. Back to the bench!Lost my cool breeze scoop whike doing 70 on the highway. It was for the NC but I found that it fit the ND. It wasn't as tight as a fit and did make several highway trips in the past, guess I hit that perfect whirl of wind?