JamestownMike

I found this link to be A LOT more helpful (has detailed pics). https://www.gmpartsgiant.com/resources/installation/GPG/18_ISheets_22901614.pdf Hope this helps!

Am I the only guy that has installed factory power windows and mirrors into a base (NON-convenience package) W/T? I can't find ANYTHING on the web for the factory swap (just aftermarket). The power window assembly bolts right into the same location as the manual window assembly. The power window/mirror/door lock door harness routes the same as the power door lock only harness. Both power mirrors bolt right up. The power window/mirror/door lock door panel bolts right up (with 1 extra hidden screw). Just missing a few wires.

Is it safe to say, pin #40 is right below pin #41? If so, I don't have anything in pin #40. So pin #1 goes to fuse 40? Unfortunately, the owner got rid of the donor Sierra cab. CRAP! Looks like i'm putting the manual Silverado stuff back in my driver door until I can get those power wires. Can I buy the necessary wires to power up my windows (both sides) and mirrors from you? I'd need pinout instructions too. I'd prefer to run wires in their factory location if possible. Can I get your number please?

Okay, that would be great. Thank you! I assumed the power mirror switch got it's power for pin #1 because a 10A fuse is present in the Silverado driver dash fuse in location 8 for the "Driver window switch/mirror switch".

Here's the Sierra driver power door panel switch assembly. I have a 2 door regular cab.

My current Silverado A/C switch (in dash).

You said, " There is a separate power wire for the power adjust switch." Can you please clarify what the "power adjust switch" is? Is that for the power mirror? I'm going from base W/T manual mirrors to DL8 power mirrors. What door jamb pin provides the DL8 mirror power? I did grab the different A/C switch assembly from the center dash on the Sierra that has the heated mirror button.

Pin #1 (battery positive) NOT there. Pin #2 (ground) there. Driver side. Didn't check passenger side but I assume it's the same deal.

I also swapped light gray 40/20/40 cloth manual seats from the Silverado to black 40/20/40 cloth driver power seats from the Sierra. A 30A fuse is present in the Silverado driver dash fuse in location 41 for the "Driver power seat". The large ground and power wires weren't present in my Silverado cabin wiring yellow seat connector. I was able to isolate and de-pin the large red/yellow stripe power seat wire from the driver fuse connector all the way to the cabin wiring yellow seat connector from the donor Sierra (with convenience package). I had to destroy the donor Sierra cabin wiring yellow seat connector trying to remove the two wires. Not sure how you de-pin that yellow seat connector, so I plan on leaving my Silverado yellow seat connector alone and T-tapping the power and ground directly to the seat side of the connector. The large black ground wire bolts directly to the driver floor. Back to the power window/mirror issue. Being what I ran into with the lack of power/ground in my Silverado cabin wiring seat connector, I think it's safe to say that pin #1 and #2 will be missing from both my driver and passenger door jamb cabin wiring connectors. How do I add those needed wires? A 10A fuse is present in the Silverado driver dash fuse in location 8 for the "Driver window switch/mirror switch". A 10A fuse is present in the Silverado passenger dash fuse in location 42 for the "Right door window motor".

The DL8 power mirrors aren't working either, just the power door locks (which I had before).

I didn't notice. I can check tomorrow morning. Might be hard to see the cabin side of the connector with the door in the way. I just swapped the driver door harness. Do you possibly have the pinout for the door harness? This way I could just check to see if I have power and ground to the door harness that the door panel/switch connects to.

Newbie to this site, so please excuse me. I did a Google search for this topic and nothing seems to come up! I can't be the first person doing this! I have a 2016 Chevy Silverado base W/T 1500 2 door long bed pickup truck that has power door locks, manual windows and mirrors. I bought a pair of donor doors off a 2018 GMC Sierra W/T 1500 2 door long bed pickup truck that had factory power windows, locks and mirrors. My Silverado passenger door had body damage so I swapped the complete Sierra door to mine. My driver side door was okay so I completely gutted my manual stuff and installed the Sierra power window, mirror and wiring harness into my Silverado door. The power locks still work but the power windows aren't working. Is there a relay or fuse I need to install? PLEASE HELP!