Ok I need some help from the experts. Some friends of ours are getting a big motorhome from her workplace to take up to Ann Arbor for the Notre Dame/Michigan game next weekend (9-10-11). The unit from what I have been told is Directv "ready". My question is will my Directv receiver from the house work in the RV? Is it basically a "plug and play" situation? How can I determine what if anything I need to do? Thanks guys