Does anyone know if the factory reversing camera in the GE8 is compatible with aftermarket units? Does it plug and play, will I need to splice it to the unit, or will it just not work at all and I have to shell out $200(!) for the AV unit specific reversing camera?

I should say that I found a few OEM cameras on Ali, and they look fairly similar - yellow video out RCA, black power connector connected to the reversing light, but obviously I don't want to buy a unit without a camera if I need one, because it'll cost a fortune to get the camera. And I don't want to have to buy a unit with a camera and then find out I don't need it, because then I have a pointless camera sitting around.