Well....I didn't expect to get all of that great information but now I can explain to these people in So. Cal why I have wiper blades on my car's headlights even though it only rains here one day out of the year Never had to deal with salted roads or snow. If it snows here, we put our longer shorts on and thicker tennis shoes and go outside and play in it until it melts a few hours later .
In two days, I fixed all components of both my electric powered seats, even the headrests which I will never adjust but I just like things to work if they're supposed to (if anyone needs help with theirs, let me know...I was even able to fix the passenger seat that was jammed down in the back to where you can't unbolt it). So, after I tear apart my dash next to replace those two vent pods that are deeply hidden, I will do the power headlight wipers too!

Thanks again so much! Great info.

Steve