I have seen this issue on my 2016 Wildcat. In the bedroom is a wallplate that has the antennae amp switch. If you remove that plate behind it you will find your amp and all the coax and splitters. Some of your connection are loose and need to be reseated or twisrted on.
2016 Wildcat 295RSX - 2015 GMC 2500HD DblCab Duramax/Allison 4x4 Z71 6.6' Bed
Maxxis 235/80/16E; AirBags w/AirLift1; mor/Ryde Rubber Pinbox; Andersen UltimateII Alum. 5erhitch on Reese Flipball w/Curt 4" offset; LCI Ground Control3; King Dishtailgater; Traveling with 10' Portabote;