Mark Manes wrote:
The reason for the loss of audio is that there is a impedance mismatch.
Freemar sells an impdance matcher that will plug into the Roadie and the Aux
audio input in the audio panel (Garmin 340 in my case). I usually set the
Roadie audio output to 2 or 3 and have plenty of XM audio.
http://www.fremarllc.com/accessories/index.html
Aeromedix also sells a 28v to 6v cig plug adapter that will fit the Roadie.
http://www.aeromedix.com/index.php?_...3893f0567f32d9
The one from Radio Shack is cheaper. The Radio Shace catgalogue shows the
adapter to be 12 to 24v input and 6v output. It works just fine. I tried
both.

That was my first thought. I was suprised Jim Weir didn't mention it.