I figured RCA cables, since that's what feeds the TV already. Not sure. I've never really dug into it, but I like the idea. Never dealt with a projector.
Only thing I've done in the past with TV stuff, is just run a splitter from the coax out, and fed a cable to an outdoor hook up. That just allowed us to watch whatever was on inside, outside.
John and Rebecca Dickson
Emma-8 / Little John-5 / Iva-1+
2013 Ford F-350 Lariat FX4, CC LB PSD, DRW
2015 Jayco Jay Flight 28BHBE (#8)