The Garmin® GTM 20 is an integrated FM Traffic Message Channel (TMC) traffic receiver and 12-volt power adapter. It receives digital traffic information for North America,* allowing your compatible Garmin® device to route you around accidents, construction and other obstacles to save you time. A lifetime traffic subscription is included.
- Real-time traffic data; no waiting for scheduled traffic news updates or random alerts
- Covers North America
- Won't interfere with music or news on your FM car radio
- Combines traffic receiver and 12-volt power adapter
- Lifetime traffic data — no monthly or yearly renewal fees*
- No professional installation required; just plug it in and drive