This kit adds the wires required for adding towing mirrors to the cabin for 2014 & early 2015 Silverado & Sierra trucks. This kit, when combined with our modify door harness will get ALL of the lighting features working properly on towing mirrors.
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: https://youtu.be/ZpXTGqAaAEs
Cross References to GM Part Number 23387133. Fits 2014 1500 Silverado and Sierra and early 2015 Silverado and Sierra 1500 / 2500 / 3500 (including Duramax)
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Good experience, easy to use website, and fast shipping

Install was easy only problem I had was reaching inside the frame to get the door harness, but that’s not boost autos fault Definitely recommend!

The Harness was well made, love being able to make it look like it came from the factory without cutting and splicing wires. Not very time consuming to install and instructional videos were great so all the details very well.

Must have it you are adding mirrors to a 2014. Instructions are top notch and made my install easy.

Great product and easy to install, just need a little bit of time and patience cuz everything in this install is hard to reach but u can do the installation like in 2 hours, and all the function in your mirrors will work