Simply plug your ipod AV cable into the 3.5mm port on the multi-adapter, plug the adapter in the phone, and set the following registry entry to a value of 1:
Immediately after it is modified, the Video Out format selection will pop-up. Select the proper format for your display/TV, and it should immediately show up on the big screen in beautiful color with perfect sound.
When you disconnect the multi-adapter, the value of the registry entry will revert to 0.
IMPORTANT NOTE: Apparently, not all 3.5 to RCA AV cable have the same pin-out as iPod compatible cables. You must use iPod compatible AV cables or hope that you get lucky with whatever you've got lying around.