Howell2133

http://www.silveradosierra.com/how-to-articles/how-to-run-power-cable-through-the-firewall-no-new-holes-t17296.html i was planning to go this route but hopefully without the hassle of removing the fuse box. It is for an older model but on the drivers side, you can see a spot to pass some wires through.

Pin outs in the PDF. Let me know what you find out. EB.pdf EB.pdf EB.pdf EB.pdf

I ended up opening up the switch housing today and saw the momentary switches. I ordered the latching relays off eBay and will play the waiting game. I have a pin breakout for the EB that I got from one of the PDFs posted so I have a good start except the indicator. I plan to mount everything in a battery box in the aux battery pan.

After reading this thread from to back a couple times, i have a couple questions. I ordered the switch panel 23145202 (Pedals / TC / Dome Light / Park Assist / LDW / HDC / Exhaust Brake) with plans to use LDW and Exhaust break for the aux buttons as i am using the others on my '15 Denali. That being said, do i need latching relays or will regular automotive relays work? At this point, i only have one light bar and plan on it going to LDW but want to hook up the EB switch and wire so i dont have to pull apart the dash again. Will the lights work on the switches with the current wiring or will i have to add those pins? Looks like pin 5 is the LDW indicator and pin 8 is the switch. Assuming same answer for the EB as well with whatever corresponding pins?