I just recently installed tow mirrors on my truck and wanted to share info I had found as I had pinched a few wires on my driver side mirror. The instructions with my tow mirrors didn’t even mention wiring. I thought I had them routed as optimal as possible but nope. Anyways, below are some pictures and a video of wire routing. These aren’t mine but it is how I routed mine after fixing my pinched wires. 

 

 

Edited August 11, 20205 yr by Red Rambler

If you notice, there is a small hollow boss by your middle finger tip.  My mirrors had a plastic "rivet" with a large flat head there to keep the wires in the channel.  I guess they saved $0.01 by not supplying the retainer!

3 hours ago, Joe_Pool said:

If you notice, there is a small hollow boss by your middle finger tip.  My mirrors had a plastic "rivet" with a large flat head there to keep the wires in the channel.  I guess they saved $0.01 by not supplying the retainer!

Agreed! These are not my exact  mirrors/photos but same design. Mine did not include the retainer you speak of. Lesson learned for sure. My intent is for someone needed a bit of help sees this prior to pinching their wires like I did. The install is easy but if you gotta do it twice it’s not as fun. Here are the mirrors I went with.