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Tow Mirror Upgrade Follow Up: 99-03 GMC Sierra 2500

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  1. step : Beginning the Repair (0:45)
    • This is a follow up to a prior video
    • See the 2002 Sierra tow mirror installation video for more detailed instructions
  2. step : Grounding the Mirror (0:46)
    • Cut the black ground wire to the appropriate length
    • Strip the end of the wire
    • Twist the end of the wire
    • Fold over the end of the wire
    • Push the wire into the eye
    • Crimp the eye onto the wire
    • Remove the bolt from the door
    • Put the eye into place
    • Insert the 1 bolt into the door through the eye
  3. step : Testing the Wires (3:23)
    • Strip the ends of the wires
    • Touch the end of each wire to the courtesy light wiring
    • Check which light lights the running light and which lights the signal light
    • Run the running light wire to the switch inside the door
    • Run the signal light wire inside the truck
  4. step : Completing the Repair (4:43)
    • See the 2002 Sierra tow mirror installation video for more detailed instructions

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Hi, I'm Mike from 1A Auto. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of Thanks.

This is a follow-up to our tow mirror upgrade. This is a 2002 GMC truck. On these '99s to '02s, we offer the signal, but you do have to wire it into your truck yourself. I show that in the other video, but with the kit that's going to be in production, there are a couple of little differences. One is that, for the ground wire, the kit will come with an eye to crimp onto that wire, so I show you that. Also, the colors of the wires coming out could be different. In the original video, I run a red wire across the truck, and the production mirrors are probably going to have a different color, possibly a blue wire or a white wire. I just show you how to identify which wire lights which light so that you can wire them correctly.

As a follow-up to our other video, you can see I'm installing the black mirrors on my truck now. These are more the production version. There are going to be a couple of slight differences. First of all, your ground is still going to be the black wire, but in the kit, what now is going to be supplied is a loop to put either around that bolt or around this bolt. What you want to do is run your ground wire up there. Needle-nose pliers will work. They have a little wire-cutting edge. Cut the wire. Then you want to strip about a quarter to a half an inch of the wire off. You can try and cut it just lightly. Then squeeze lightly, and pull it. Twist the wire, and then fold it over itself. What you're going to do is put the wire into the eye. What I do first with my needle-nose is I bend over these crimps. Then I bend the wire ones as well. Now when you put it in there, the wire hits and squeezes nice and flat. When that wire hits the second set of crimps, it's in there nice and firm. Then you just take your needle-nose and squeeze down really hard there. Squeeze down really hard there. Then you've got a pretty good crimp. Now I'm going to remove this bolt. Put it through that eye. Reinstall, and you've got a nice solid ground now

The other things is you always want to make sure that you know which wire is which. Before you cut these, you could test them to see which one lights which light. Obviously, you want to run the one that lights the lower running light you want to run to your switch here. The one that lights the blinker, you want to run into the inside of the car. The easy way to test them is I've just stripped off a little bit of the end. Now, this may feel a little dangerous to you, but it's actually not. You're just going to take the wire, and you're going to touch the back of the lead here into your courtesy light. When I do that, you can see that the blue wire lights the signal light there. I'm just touching it intermittently. The red wire, if I touch that to the back, you can see it lights the running light. For this application, the red wire we want to run to our switch, which is the running light. The blue wire, we want to run inside the truck. I'm not going to redo all that. I just wanted to show you the upgraded eye that comes with this, and that it's a little different because I know in my video, I ran a red wire inside the truck, which I'm just going to splice here because I don't want to rerun the whole wire. I'm going to actually splice the blue wire with the red wire. What you'll actually do is run this blue wire into your vehicle or whatever is appropriate. Then I'm going to run this red wire over to the switch just like I did before.

We hope this video helps you out. Brought to you by, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.

Tools needed for replacement:

    Pliers, Cutters & misc Wrenches

  • Wire End Cutters
  • Wire Cutters
  • Needle nose pliers

  • Ratchets & Related

  • Ratchet
  • Socket Extensions

  • Sockets - Metric

  • Complete Metric Socket Set

  • Sockets - SAE

  • Complete SAE Socket Set

2001 - 2002  Chevrolet  Silverado 1500 HD
1999 - 2002  GMC  Sierra 1500
1999 - 2002  Chevrolet  Silverado 1500
2001 - 2002  GMC  Sierra 1500 HD
2001 - 2002  GMC  Sierra 3500
1999 - 2002  Chevrolet  Silverado 2500
1999 - 2002  GMC  Sierra 2500
2001 - 2002  Chevrolet  Silverado 3500
2001 - 2002  Chevrolet  Silverado 2500 HD
2001 - 2002  GMC  Sierra 2500 HD


Chevrolet GMC Driver Side Mirror TRQ

This part replaces:

  • Partslink GM1320231
  • TRQ MRA05041

Part Details

  • Mirror Color / Finish: Gloss Black
  • Mirror Operation: Power
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