Head-Up Display doesn't show radio stations

2000 Pontiac Grand Prix GTP

I had a Delco Monsoon radio from a '98 Firebird that I wanted to swap into my '00 GTP. Prior to the swap, my Head-up display showed the radio station when I changed stations. With the Monsoon, it does not show. Both radios are very similar (only difference is that the Monsoon has adjustable equalizer settings, while the basic Delco only has base and treble settings). Both have three open jacks in the back. I hooked up all three jacks to the Monsoon. The radio functions fine, but does not display in my Head-up display. Is this an internal setting in the radio, or is there something I can change to correct this?

Thanks,
Jarrod

IIRC that head unit was not made to work with the HUD. Therefore it will not show the radio stations.

Yeah..what he said. :)