Then, after you tell them not to cut wires from the loom, tell them you will not pay for the install if they cut any wires from the loom. The only good way to fix it if they do is to buy a new sled and you don't want to do that. They may not know what the wires do but they are all nessisary for the proper functioning of the unit. Especially if you have a tuner box. If you want to know the horrors read my instalation story about what happens when they do cut the wires.

Greg