Garmin GPSMAP® 4210 [14/24] Every device connected to the garmin marine network must be connected to the power supply for the boat this diagram shows the network connections however it does not
Gpsmap 4210 by GARMIN
Garmin GPSMAP 4210 Set Of Internal Cables For Display | eBay
GPSMAP® 4210 | Garmin
Garmin 010-11061-00 GPSMap 4210 Snap Cover Bezels Set - Also for 4010 - Max Marine Electronics