the 669 accepts 2 RCA inputs, one DVI OR HDMI (not both), and one VGA input. You can switch between the modes freely like you've always been with lilli's
I have no idea if it will fit in the mechatroniks bezel. I dont own one. I do however have one of the bybyte double din mounts for a 629 lilli and my ultimate goal is to get the 669 mounted in there. I've from chris at mo-co-so that the controller board is too tall and the hdmi connector would be too wide, but i hope to make modifications to the bezel which will allow for these things.