slamdance wrote:
I have a Garmin 182C that I would like to connect to a new iComm M502.
Which NMEA wires gor to whihc, and what is the easiest method for
making the connections?

Depending on the number of pins in the Garmin plug, Garmin's website has
wiring diagrams for all their plugs. Usually the data-out wire is blue or
brown, and the second (gnd) wire is black. Best place to pick these up is at
the opposite end to the rear plug, where they may be tied back, or feeding
other instruments.

I don't have the websire page, but it is easy to find with their search
facility. It is in pdf format.

Dennis.