Connecting rear headrest screens to RNS510 headunit (RGB to composite conversion)

[shaft-50]

Hello guys n gals, this is my first thread on the forum so be gentle ! I have recently purchased a new Golf GTI MK5 DSG with some extras and toys, and bought the RNS510 DVD/Hard drive based head unit (version b). I am also having headrest screens fitted in the rear soon and was hoping to run them off the rns510 however apparently that has RGB inputs and outputs and the screens have a composite fitting. Does anyone know of or have for sale a converter to convert the RGB signal (rns510) into composite (screens) so that i can run the headrest screens direct off the rns510 and play movies etc. Any help would be appreciated as i have asked about and no one seems to know. please email me talibkhan@o2.co.uk.

[Ben]

supply images of the rear of the RNS510 and the connections for the screens please.