Classic Straight USB Cable suitable for the Garmin Nuvi 300 300T with Power Hot Sync and Charge Capabilities - Uses Gomadic TipExchange Technology - Walmart.com
Amazon.com: NewPower99 Battery Replacement Kit with Battery, Video Instructions and Tools for Garmin Nuvi 300 : Electronics
Garmin Nuvi 300/350 Personal Travel Assistant Gps, Chords Case & Manual Included | eBay
Garmin NUVI 300 Replacement Battery | Battery Mart
Car Mount Holder and Suction Cup bracket for Garmin NUVI 300 Series 310 350 360 370 GPS|garmin nuvi holder|gps car mount holdergarmin gps holder - AliExpress
Gomadic Intelligent Compact AC Home Wall Charger suitable for the Garmin Nuvi 300 300T - High output power with a convenient, foldable plug design - U - Walmart.com
RAM Torque 1 1/2" - 2" Pin-Lock Rail Mount for Garmin nuvi 300 310 350 360 & 370 - Walmart.com
nüvi® 300/350
Amazon.com: PK Power USB PC Computer Data Cable Cord Lead for Garmin Nuvi 300 310 350 360 370 465T : Cell Phones & Accessories
Vehicle Power Car Charger Adapter for Garmin nuvi 300 310 350 360 370 270 260w | eBay
3rd Generation Powerful Audio FM Transmitter with Car Charger suitable for the Garmin Nuvi 300 300T - Uses Gomadic TipExchange Technology