Getting TV video from a motorola MBP36 video baby monitor
from http://forum.allaboutcircuits.com/archive/index.php/t-63579.html

I mixed up the pinout again, but now it seems that I got it right. When holding the device so you're looking at the AV OUT recepticle and the lettering is upright, pin #1 is the pin on the left. When holding the mini USB connector so you're looking at the plug (not cable) side and the wider side of the outer metal sleeve is on top, pin 1 is on the right. The pinout, from pin 1 to pin 5, is the following one:

Not connected.
Audio (white).
Not connected.
Video (yellow).
Ground (black).

See the attachment for a photograph of a mini USB plug showing the pins