Sold as a set (kit covers both sides). This wiring kit adds the missing wires to your GM door harness for upgrading from small mirrors to towing mirrors. This gets ALL of the lighting features working properly on towing mirrors. This kit is all that is required for 2015.5-2019 trucks. Why spend $200+ on replacing your door harnesses when you can just add the missing wires for a fraction of the price?
This upgrade will work for OEM mirrors (RPO code DQS or DPN) and any aftermarket mirrors that properly wire all of the wires into the OEM style connector.
- Link to installation video (original mirrors WITHOUT signal): https://youtu.be/hDQBOxc9Aug
- Link to installation video (original mirrors WITH signal): https://youtu.be/cjb_LKi6Hlo
Reviews
- Reviews
- Questions

Great Customer Service
Exceptional! Gave the Boost Auto Parts staff two calls during the upgrade project. Couldn’t find a specific Boost video so I spoke to Gino who promptly emailed me the link. Ran into a snag on the driver’s side install. Called and spoke to Ryan. Explained my issue and at his request sent him pictures of what I was dealing with. Ryan reviewed the photos and sent back instructions on how to adjust the installation process to make it work. He also included edits to the pictures I sent which coincided with his written instructions. The advice was spot on and the installation was completed with no further problems.

Lights
Easy to install and does exactly what it says it does.

Quick and easy, about as close to a factory job as you can get.
Very easy install! I like that it’s not just a bunch of T-taps and actual splices are kept to a minimum.

After ordering delivery was quick awsume product
everything worked as instructed. would highly recommend any product from boost auto

Silverado tow mirror wiring harness
Excellent, YouTube video instructions were very clear and made installation very easy. It’s been on my truck a little over 2 months and is still working like it should, great product!