Martin,

How can I hook up my autopilot to my AvMap's outputs?

Now THAT would be useful.

If your autopilot supports nav coupling (ie has CDI L/R input pins and
some kind of a mode button to bring this into the control loop), you
can get a converter that generates the standard CDI voltages from an
NMEA RS-232 data stream, see the Smart Coupler on
http://www.porcine.com. Looks like it could be installed in a portable
manner via some panel jack, or get the "LE" model and hide it under
the panel good ;-)

But even it's possible technicaly, I guess nobody would let you do it, just
because the AvMap is a handheld unit (even if Jay straps it on his knee ;-)

Regards

Kai