Greetings, I have been using my ZUMO 665 with XM puck for 2 years, for both radio and weather radar. Recently I started getting a display that says "check XM antenna". Rather than using the tangled mess of the MC mount, I have used the radio mount so I could easily move it to my 2 other bikes. On my main bike I have the XM puck mounted. I bought a new 665 car mount, 011-0205-10 and got no change. I also have a spare new XM40 puck and tried that with no change. I had XM send a refresh signal, with no change. All that is left is the Zumo 665 itself, it appears. Now it is basically a 660, as the XM is not working. Has anybody had similar issues or have any suggestions? Thank you, Fred Z.