I have a radar dome on my boat, scanner unit# RSB-0028-S with a transmitting tube: Magnetron E3554. I hope that's enough info... I would like to hook that into my Garmin 74dv navigation. Is there a unit that will allow the two to talk to each other? I can use the old display unit but, WOW! That's a lot of buttons to play with! It's called a Raster scan daylight display. It looks like I should be ready for a game of pong...

Thanks for any info!