Garmin Power/Data Cable - Bare Wires f/Fishfinder 320C, GPS Series & GPSMAP® Series

The Garmin Power/Data Cable with bare wires for Fishfinder 320C, GPS Series, and GPSMAP® Series provides direct hardwire connectivity between your Garmin navigation and fish-finding electronics and a DC power source. Unlike standard connectors, the exposed wires at the cable terminus allow you to integrate your GPS directly into your boat's electrical system, enabling seamless data sharing across multiple marine instruments without proprietary plugs.

This dual-function cable carries both power and NMEA data signals, meaning your Fishfinder 320C or compatible GPS unit can transmit real-time speed and position data to chartplotters, computers, autopilot systems, and radar units simultaneously. The bare-wire design is ideal for permanent installations where you want to bypass panel-mount connectors and wire directly into marine-grade distribution panels or power busses. The cable measures 6 x 2 x 10 inches and weighs 0.38 lbs, making it compact enough to route through tight cabin spaces or helm wiring channels without bulk.

Serious offshore anglers and weekend cruisers who demand integrated bridge electronics benefit most from this cable. Weekend fishermen upgrading from standalone GPS to a multi-instrument network, and boaters retrofitting older helm setups with modern Garmin technology, will find this solution straightforward and cost-effective. Proper wire sizing and connection to the correct power and data bus pins is essential—consult your Garmin unit's installation manual and your boat's electrical schematic before wiring to ensure correct polarity and gauge compatibility.

Garmin's marine electronics are engineered to NMEA 0183 standards, the industry protocol for marine device communication. This cable supports that standard and integrates into any system architecture using compatible Garmin receivers or transceivers. Keep this cable on hand as a backup for installations where connector corrosion or accidental damage has disabled your primary data link—replacement is far more economical than downtime at sea.