I have the NAV, so I can't rightly say. But even if the MFD has the RGBS inputs available but unused, how would you activate them? You have no means of placing the MFD into NAV screen, which, for the US market, is the only mode that uses the RGBS. However, if you can get a valid device ID on the AVC network that would use RGBS, then maybe you could get it live, somehow. I think that is how Coastal's AV module works. The mod activates using SAT 2 and 3, but I believe it instructs MFD to go to NAV or DVD mode.