Depends on when the system was installed. If its within the first 180 days the retailer gets charged back (If ordered through a retailer), and trust me they will come out to your home to remove the equipment including DISH, LNB and switches.
As far as the wiring, its up to the person removing the system, I usually don't remove it unless the customer does something to piss me off.
My feeling is that in the first 180 days I paid to install the wiring, I got charged back on the wiring, its not being used by anyone.
Its just like a lady I had who we had to pole mount her Dish 150 feet away from the house. She cancels and switches to Directv and then takes the Dish, receivers and remote control and puts it outside her front door, and calls me and says she put it outside and if i want it I better come and pick it up before someone steals it.
I get out there, all my equipment it sitting on her front porch and in the back yard Directv conviently used my pole and wiring
Took my equipment, set it in the truck and then went and got my sawsall and also removed the pole and pulled up all the burried cable I had installed a few weeks earlier for FREE. I set the Directv Dish on the ground right where I cut out the pole and left.
I get a call from her daughter 3 weeks later saying I had no right to remove the pole and wiring. I told her to call Directv back out and have them finish the installation they never completed because they used my pole and wiring.
She said she already called them and they wanted to charge her $150
I told her thats about what they should charge you, after I had to give you the pole and burry the wiring for FREE just to get you to take the service. You don't want my service, tell me to come "pick up my sh*t" so I came and took all my sh*t back including the pole and the wiring.
Took her about a month for Directv to come out there and to re-install her system the right way, because her daughter called me up one day trying to get me to compansate her on the bill for the month they where without service.