Mu fifth wheel was pre-wired with an exterior cable inlet and the jumper inside to go around the amplifier. But I decided to install a separate exterior inlet for my satellite. Using Jayco's setup requires using Jayco's wiring. Although Jayco's cable is RG-6, the cable connectors are crimp, not the required compression type. Also, cable for satellite use is recommended not to be bent at less than a 6 inch radius; the cable for my exterior Jayco connection was bent at about a 1 inch radius.
I know that the Jayco installed cabling can work for satellite - but I think a whole lot of problems are eliminated by installing a dedicated satellite input. If there is a convenient pathway from an exterior wall to your satellite receiver, it is very easy to do. I used a cable inlet like
this one. In addition to having the tools to drill the whole for the cable inlet, you'd need to have a compression connector tool
like this.
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There's lots of advice and information in forums... sometimes it is correct. For example, all of my posts are made by a political appointee who got the job as a reward for contributions to my diesel bill.
2011 Jayco 28.5RLS; 2021 Chevy Duramax; Pullrite Superglide Hitch