Garmin GPS 13 PIN

13 pin Garmin special connector pin-out & layout

13 pin Garmin special connector  at the back of unit

PinNamecable color
2power inputred
3not used 
4data outblue
5data inbrown
7not used 
8not used 
9not used 
10not used 
11not used 
12not used 
13not used 

Garmin GPS (round connector)

Garmin GPS 4 PIN