Hi Tom,
Since you have the receiver and a 2006 coach, this should not be difficult. I will assume your coach has an external connection for cable TV. You'll need a portable satellite dish, cable (50' - 75' should be fine), tripod, mast, and a satellite signal finder. The signal finder is not mandatory. For me it is a big convenience click
here for sample Satellite Signal finder. Camping World also sells the dish, tripod and cable. You will also need something to hold the completed assembly in one spot. Several gallon milk jugs, filled with water, on a bunge cord should to this job nicely.
I am a DTV customer. DTV offers a kit that has a dish, tripod, mast and cable for about $70. Consider calling Dish and ask if thy have a portable Dish kit. I have a satellite dome on my coach roof. I also have a portable dish setup like mentioned above. I use the portable setup when the dome is blocked from receiving a signal. This is about 10-15% of the time.
For where to put the receiver, I hope you have some sort of A/V distribution box. If you do, then hook the receiver into the back of the box so it will receive the signal from the cable TV connection on the outside of the coach.
If you have no outside cable TV connection or A/V distribution box then your in for some wire running and making your own connections. Before we get into the details of that exercise, please let us know if you have the connections in your coach.