Anyone here a Raymarine expert?

[saltyric]

Alright, so i busted into the boat today....this is what I have. Two c-80's, one i use as a primary(directly in front of helm), and one as a secondary (off to the side). The radar is connected into back of primary, as is the NMEA interface to my VHF. The DSM300 (sounder) is connected into back of the secondary unit. The GPS antenna is spliced into both units through the SEATALK connector in the following manor: The red wire from each seatalk cable is spliced with the red and green wire from the GPS antenna. The yellow wire from each SEATALK cable is spliced with the yellow wire from the GPS antenna. The ground wire (may have black shrink over it ) from each SEATALK cable is splice with the bare wire and the brown wire from the GPS antenna. Thats it (other than the power cables for each display). Both units display Charts, although they will not share the same card (need two). The primary displays radar overlay.....the secondary displays sonar. Both units will display heading and waypoint when on chart page. Hope this helps.....Let me know if you need any more info.....