Some time ago (four months I bought a rgb interface in ######### shop (the old model with scart adapter)) to fix a dvd player to my comand system 2.0 dx (mb w203) without a tv tuner.
I must say to you that the red wired that takes the adapter i have fixed to the +12v of the lighter.
I have fixed c1 stecker and c2 stecker (with the wires of the "i CAN low and high" number 8 and 9 "i CAN" is correct)
the radio works fine and the navigation system too.
One more thing when i put the ignition key of the car in position 1 only works the comand but not the dvd player (the dvd player fed from the lighter) and when i select the tv button in the screen in the screen it appears the following message "no tv !". when i pass the ignition key in position 2 the screen puts black.
Well after to do it i have to tell to you that when i select the tv button only can listen the sound the screen still black with the car stopped and the brakehand put.
So if you are so pleased can you tell me if i have made a mistake fixing the rgb, o maybe be possible that the rgb is in bad condition or i must to activate the tv button in the mercedes factory o i have to do another thing else to fix it correctly.
i expect your notice because i do not know what i have to do it
thanks from spain.