My pet hate,may of been covered,but I'll share incase.
F Cable connection adapters from B&Q
5050171064801 product code. Never screw an F connector together again. Bliss.
Note that all additional unnecessary adaptors will each attribute a small loss in signal strength. But my van came with a couple of these adaptors so I could use the external satellite connection and wiring for an external TV aerial instead.
Yes,funnily enough that's where I found some,in with the aerial instructions and a blanking plate I think, curse the past 2 years. Note to self,fully unpack the box.