GPS Mouse - GP-808G Hookup Guide
Contributors:
Joel_E_B
Joel_E_B 
Hardware Overview
Let's go over the GPS Mouse in detail.
Inside the enclosure, you'll find a normal looking GPS module with a few extra bits. On the underside, you'll find a backup battery for warm and hot starts as well as the onboard QMC-5883 Magnetometer.
The pin out for the GPS connectors are as follows:
GPS pin diagram via the GP-808G datasheet.
The I2C lines are for factory programming of the module. No register data is available in the device's datasheet. All communication with the device in this guide occurs over serial.