CAN'T GET GPS FOR SPEED TO WORK

Hi there. So I’m currently running a Android 10.1 Double Din with a external GPS unit that wires in. For some reason Realdash isn’t picking it up. It worked the 1st time I turned the car on, says “INTERNAL GPS CONNECTED”. But now it’s not picking this up and my speed remains zero. I’ve checked Input Mapping and Vehicle Speed is set to GPS SPEED. Any help would be muchly appreciated

How does it wire in? USB? I don’t know if you need to configure Android somehow to use the external GPS as internal. But its impossible for me to troubleshoot these custom setups.