Still seems like too much hassle when the Autocom still works fine?
I sort of agree (which is why I've still got an Autocom) but the Nav 5 is bluetooth only, which means an adaptor to get it to talk to the Autocom - and the Autocom BT adaptor I have on my Logic system is really poor (not sure about the SPA system). I seem to get through headset leads and/or looms on a regular basis, so that I carry spares when touring and the lure of bluetooth is getting stronger as the kit gets better.