My truck was in the Diesel Shop... the mechanic questioned "all the extra wiring under the dash".... Yes there was. I'd left the harness on the trailer brake full length as it had nice labels on each lead. I had installed an Escort Radar system (front & rear sensors wired to a under the dash box & a tiny control unit)... again left full length as they were tiny factory made connectors. They were all bundled & zip tied under the dash. None of these affect the engine but he didn't know what it was.

I had an AD150 & big line system installed.

Now, I'm adding a IAT fooler & XZT+. Both are plug-ins. This is important as they can be reversed for troubleshooting if necessary. I'm creating a schematic & sheet on the IAT. I AM going to copy & keep the installation instructions for the XZT. And I'm making a list of these aftermarket sustems... to stay with the vehicle. God forbid I should have to explain all the stuff on the truck... but better to keep it all together.

edit When I had the AC repaired last, the mechanics (idiots) apparently did not snip my zip ties... and some of my wiring (rear radar sensor) was damaged. It's my belief that they just used force. I'm thinking of employing grocery store velcro (produce dept green strips) to hold some slack in the wiring so it'll give this time.

Wrap the wires around a small rod then pull the rod out. Now you have a wire coil, zip tie it a little so it doesn't dangle and now when they yank on it, it will have plenty of slack. Only bad part is if they pull it way out it will uncoil, but better than damaged wiring.

Yes, I'm figuring I'll have to re-coil after service but better than damage. I couldn't make the harness spiral stay but I can make a loop out of it... a loose zip tie at the top (overlap). I don't think I can secure it up behind the dash (with one hand) but i can use a piece of fishing braid to raise it... then it'll have give. The XZT is the size of a pack of cigarettes but I'm having trouble finding a place to velcro it. The harness is short & I can't get it beyond the brake pedal / steering shaft. I'm looking at the plastic cover on the e-brake assembly... might be able to velcro it there.

Russ, doesn't this scenario kind of remind you of the "Samsonite" gorilla in their luggage commercials??!!!!:lmao2::cry:

Yes, it does. I hate discovering damages & crappy work after paying plenty to have work done. AAARRRGGGHHH!!!

I also have the XZT+ and I just used 2 zip ties to attach it to the underside of the e-brake controller. Zip ties go clear around the controller and the XZT. The e-brake controller is held in place by a bracket that screws into the lower skirt of the dash board. This allowed the cable lengths to reach where they were needed on my truck. When I removed the XZT to add a new software version I just cut the ties and then re-tied it in place after the upgrade. Pretty easy to manage. I have the XZT 3 position toggle switch taped in place on my gear selector shaft right at the base of the plastic knob on the end of the gear selector. It's out of the way from where I usually place my hand whenever I am moving the gear selector but close by so if I want to change the specific tune I am using on the ZXT then I can easily access the switch.

Right now, I dressed the harnesses fron the rioght side of the knee panel, through the dash... tucked under the carpet to the right of the GO pedal... just under the edge of the carpet around to the e-brake area... so far I just tucked the XZT+ under the carpet too. I'm sure the spot I'm eyeballing on the ebrake is the same one you used. Yup, zip ties are expendable. I was confuse at first... I have my Epco solid state trailer brake controler bolted through the knee panel on the left edge (between the e-brake release & the hood release) with the harness dressed under the dash. Things get real crowded around that e-brake area. The Epco units look identical to the "Power Stop" PS500 http://www.powerstopusa.com/products.php