


GM Modify Door Harness for Plug and Play DL3 Small Power Folding Mirrors - Silverado & Sierra (2014-2019)
21 reviewsSold as a set (kit covers both sides). This wiring kit adds the missing wires to your GM door harness for upgrading from small mirrors without power fold or turn signal (DL8) to small mirrors with power fold, turn signal, and puddle light. This gets the turn signal and puddle working, and when purchased in combination with the power folding switch the power fold can be gained as well.
- Link to installation video: https://youtu.be/xR4HTRmNGDc
- Link to additional supplemental install (2014 trucks only): https://youtu.be/Xy6UUXVIGZU
Looking for the mirrors as well? Purchase the mirrors & harness by CLICKING HERE.
Reviews
- Reviews
- Questions
Thank you for submitting a review!
Your input is very much appreciated. Share it with your friends so they can enjoy it too!

GM Door Harness for plug and play DL3
It did what I needed it for and made the process easy

5 Stars
Good really easy fast shipping overall satisfied

signal wire harness
Fast easy instructions!

Easy Install
Wiring kit worked as expected and was super easy to install following the instructions provided. DL3 mirrors work like factory now!

Everything works great
Was easy to install great YouTube tutorial and fast shipping. Everything is working properly LED side mirrors puddle light. My only concern was what the white wire need for
Boost Auto Parts
Hi Daniel, This is a universal kit that is also used for towing mirror upgrades. The towing mirrors utilize an additional wire, but that feature is not present on the small mirrors so it is not used in this installation. Thanks, -The Boost Auto Team