Brian,
I know you already have an external aerial but thought I'd mention the GPS receiver I have that works really well.
It is wireless, connects via Bluetooth and sits beside that centre speaker where it seems to get a good signal, although I haven't been to WA.
I have the Hema App on the iPad and iPhone but not sure if this would be any good in your application if the GPS is built in to the device itself.
USB charge cable so would work well with the Kuda mount.
Universal Bluetooth GPS Receiver for Today
https://www.aulro.com/afvb/images/im...016/08/247.jpg
They also have higher spec models for light plane pilots.
Cheers,
Scott

