I have one in my KR. I have used it only to test. A few guys ( older Guys) say it is difficult to use because the knobs are small and the squelch and volume knob are one. The first one is the volume and the one behind is the squelch.
There is a page somewhere on their web that had the full operation instruction you can down load for a look Found it. Have a read!!!!!!!! http://www.microair.com.au/admin/uploads/documents/M760N2installusermanual01R11.pdf Phil Matheson VH-PKR mathes...@dodo.com.au 0358833588 Australia Web Page http://www.philskr2.50megs.com/ See VW Engines http://www.vw-engines.com/ www.homebuilt-aviation.com/