I'm having a weird problem hopefully someone can help me with it. When I have the XM traffic data line plugged into my D1 I loose my Vehicle Dynamics Display (VDD). It did work at one time. I rechecked all connections and everthing is right. And I do have a subscription to XM traffic. I searched this entire forum and couldn't find anyone with a similar problem.

They are completely independent of each other so I have never heard of that before. Did you try resetting both of them

Yes I did I unplugged the XM,Sirius and IPOD then I reset the D1 and traffic tuner. I let the radio turn on with nothing plugged into VDD worked fine. So I shut off the ignition plugged in the XM turned the IGN back on VDD comes on once I switch back to map then back to VDD and its gone only a background.

It was a software issue new dvd's solver the problem.