I am trying to make a home brew cable for chirp for the Yeasu ft2900.

I have an old prolific uv5r that's already been cut in half. Inside are a red, white and black wire.

If any one knows what the red, black and white wires in a prolific uv59 cable are for email me off list please.

The 2900 only needs data and ground, and I know which pins of the rj12 they go to.