496 antenna conector

Question for you guys who have been using the 396 or 496 with XM weather.
I purchased the 496 and just fell in love with the weather feature.
My problem is I've using a Gizmo mount for my 296 and have been very happy with that combination. Now with the 496 and the weather antenna conector pluged in, the 496 will no longer fit in the Gizmo dock. After checking with the people at Gizmo, I'm less than satafied with their answer.
Has anyone run into the problem and how did you get it resolved.
Thanks
Rich
RV-6 N721ET