[1Bad62Pro/Street]

Delay Wipers...
Found this:
This page is all about delay wiper systems and how to retrofit them to your vehicle. This may not seem like a big deal to many people, but where I live it doesn't rain as much as you get a heavy fog. It's just enough to need to run the wipers ever few seconds. Leaving the wipers on low without sufficient water on the windshield results in running the wiper blades across a pretty dry windshield - and that leads to annoying squeaks on every swipe of the blades and excessive wear and tear on the wiper system. The squeaks alone will drive you nuts, and pumping the wiper switch on and then off again every few seconds gets old real fast.
http://www.rowand.net/Shop/Tech/DelayWipers.htm