We have a newer TT and it has a control center for all your stuff from TV to water. The 5ers have had this for some time. My problem is with the water. The hookup has a knurled round fitting the you ...
One additional point - Be sure your water pressure regulator is attached to the supply spigot end of your hose. The reduced pressure in the water hose will not require as tight a connection to prevent leakage.