Garmin 010-10510-00 Auto Navigation Kit For GPSMAP 276C, Works with GPSMAP 276C, All Accessories in One, Several Mounting Options, Remote Speaker, 12V to Mini 9 Pin & 128 MB data card
RAM® Drill-Down Mount for Garmin GPSMAP 276C, 496 + More - Aluminum – RAM Mounts
Garmin Power/Data Cable For GPSMAP 276C And GPSMAP 278 Black| Waveinn
For Sale: Garmin GPSmap 276C and accessories - Trawler Forum