My coupe is 3 months old and I've had an interesting problem with the XM radio. On two occasions the audio output (sound) stopped. Channel and other info was displayed OK. All other functions such as FM radio, CD, etc worked OK. Turning off the audio system and back on did not affect the problem. Turning off the ignition and then back on restored the XM audio output. The dealer service dept has a call into Honda but I thought I'd post here to see if others have experienced the same problem. Thank you

 

On the Odysseys we had a problem with the DVD cable causing similar symptoms.
Usually with the XM radio it ends up being the XM unit itself. I'm not sure but I think that one is in the trunk again.