7
2.3.3
Step 3: Connect GPS Antenna
1
GPS antenna is used to receive satellite signals in the sky. It should be positioned at a place
where it will have an unobstructed view of the sky. The ideal location is top of the dashboard or
close to the rear window of the car.
2
GPS antenna can pick up signals through glass and plastic, but will not "see the sky"
through metal or other conductive surfaces. To avoid distractions of GPS signal, make sure
the antenna is not covered or shielded by any object containing metal, such as the metallic
windshield.
3
If your car is with metallic windshield please cut a hole on the windshield above the place
where you put the GPS antenna, so that the antenna can receive the GPS signals.
2.3.4 Step 4: Connect power charging
ST-908 connects to the 4pin and 6pin wires.
2.4. Wiring Description
4 pins connector
Pin
Color
function
1
Red
power switch
2
Red
power switch
3
Yellow
Connect to door sensor
4
Green
Undefined input.
for example you can use it to detect the signal of car alarm
