Ok, I think I figured out by reading some of the posts that you can't use the cable connection on the outside of the trailer to get a satellite signal inside the trailer. I have a 2010 Edge M21. I'm trying to get a tripod mounted slimeline 5 hooked up to the TV inside via a Directv HD receiver! The only way to get any signal to the receiver is to route the wire through an open window and connect it directly to the satellite receiver. It seems like I need to run a dedicated satellite line? Or is there a satellite connection on the M21 that I don't know about? Also, will Directv HD work without a direct line to the receiver? All my house connections are straight runs from the dish to the receiver! How would you handle this dilemma? Thanks for the help ahead of time!