I know this had been asked a 100 times but I really can't find the exact answer. I have one hopper and 2 coax wired Joey's. I want to add a third Joey to my outdoor patio but I have no way to run coax from the hopper. Can the third joey be set up wirelessly and if so, can i just buy a used one on ebay? Also, do I have to buy the wireless dongle from Dish? I realize the third joey will just be a mirror of one of the other Joey's but that doesn't bother me at all...I have been searching for an answer for weeks so any help is much appreciated.