This may be a dumb question, but ...

I have an AF-4500 and have bought a 73101 GPS from another builder, it came without instructions. I would like to know how to wire it in.

Currently I have GPS in on Serial 1 and GPS out on serial 4 (to the TT Digiflight IIVS autopilot anticipating ARINC module installation), but I am removing the GPS source.

I am guessing that the AF GPS needs to be powered. I see that pins 9 & 5 of the expansion connector (serial 4) are +5v & ground.

Therefore I intend to connect the AF GPS to the expansion connector/serial 4 (AFS GPS) and the TT AP to serial 1 (AVTN/AVTN).

Please confirm this is correct.

If I ever install an ARINC module how would I do that? Can I share the expansion connector 5v output?

Peter