I had the same problem, it turned out the wiring was wrong. Check the cord reel, if I remember correctly there was a purple wire on it, but mine is a '05. I then went to the fuse block and looked at the wire, sure enough there was a purple wire, however there were 2 purple wires and guess what, the fuse on the OTHER purple wire was blown. How could the folks at WRV have confused 2 purple wires. Oh yes, the OTHER fuse was 15 amp (I think it went to the TV booster), not 20 that the cable reel is supposed to have. I rewired them and all has been great since.
Dave, Bobbi and Fenway
2005 38' FDTS Alpine Limited, 2016 Jeep Grand Cherokee Limited
Cape Cod, MA