Best method. Restore all original wiring and install either RG-6 or RG-11 from Receiver to handy dandy external connection spot (IE in a storage bay) This is always what I recommend.
Option 2
Remove park cable lead from back of wall plate (Center lead) and extend to Sat Receiver Do not use diplexers or any fancy stuff just a double female connector (Barrel they are also called) if the Sat Receiver has RF out to tv extend that back to the cable port else leave it un-populated (not connected)
But I really recommend a dedicated sat antenna lead (RG-6 or RG-11) not the El-Cheapo RG-59 they put in at the factory.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times