This will get the side lights on your Silverado or Sierra tow mirror to work as both a dome light and a reverse lamp. This is ideal because the light can work as approach lighting when unlocking the truck, but also as a reverse lamp.
The video below will go over how to wire it in.
Boost tow mirror
Works great !
Works as described! Now i'm able to have two different inputs to the spotlight on the mirrors!
Dual Function harness
Great, easy to use
video was very helpful on install. glad i chose this option.
Great lights for getting in and out at night.
I have a tahoe with tow mirrors and its very helpful at night with the kids getting in and out