Originally Posted by wingedone
Originally Posted by leefl
The upfitter switch wire tails are up right behind the parking brake release lever.
Don't confuse them with the separate bigger bundle of wire tails that go through the firewall to the engine compartment.
There's 4 wires, one for each switch. I used the lowest rated one which is switch #3 and is a green/violet striped wire.
I can try to take photos tomorrow
I would appreciate that.
I took a couple of photos, but the ones under the dash were taken blind (couldn't keep door open to get in a good position for photos since it's been raining all afternoon), so if you need a clearer photo of where the wires are then I can take one whenever it's not raining
TPMS Monitor mounting location (phone wanted to focus on the outside world ... can't blame it)
I fed the wire (including the inline fuse) down the gap shown and fished the wires out under the dash.
Trying to show Upfitter switch wiring location
You can see where the wire tails are taped, the green and yellow ones are visible.
I freed the green/violet one to give a little more flex, but they're still very short and awkward to reach.
Again, but also showing where I connected the ground wire
I used a velcro strap to secure the excess wire from the TPMS Monitor, and ran the ground wire over the top of the brake release cable to stop it dropping down