Sometimes things move slow on this board... I've only had a fullsize about 3 weeks so I'm pretty in the dark with some things still. I'd wait a few days and see what others had to say on everything. As for the wipers, it would probably depend on what kind of setup aftermarket cruise offered. I don't know anything about the units themselves other than that they are available and when I inquired about adding it on my S-10 everybody told me the easiest way was with an aftermarket unit rather than adding to the factory wiring harness. But later on a source told me the wire(s) are already present in the harness, it was just a matter of locating and extending it, but that was never confirmed.
87 Silverado 4x4 Longbed Pickup
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