Jon Kraus wrote:
Yes. The TKM MX 170B will slide into the KX 170B tray... Just like
everything else in aviation you'll hear good and bad about them. I think
you can get a new one for around 1.5 AMU's. Here is a place to start:

http://www.acespilotshop.com/pilot-s...km-mx-170b.htm

....also http://www.avionix.com/navcoms.html

Dave