Installing and using external 4G and GPS antennas on the AutoPi TMU

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I need more clarity here. Which one is the GPS cable and which one is the 4G? The illustration is showing 3 antenna connections?

I believe the middle one is meant for GPS. I’ve just taken my previous gen AutoPi apart and the grey cable connects to GPS antenna.

Hello James,

In step 11 you will see where the GPS antenna should go.

The GPS antenna is the grey one and it goes in the middle,while the 4g ones go on the sides.

Let us know if you have any questions.