kpeterson

It's not a perm fix but did you try to lower the seat? It worked for me 100%. I haven't had any movement since.

I haven't had this happen to me but I read somewhere in previous threads that someone determined the xm antenna leaks. Sent from my iPhone using Tapatalk

Mine did the very same thing after 1000 miles. I read the posts on here and lowered the seat slightly. I had it set pretty high. This solved the movement. I brought it to the dealer anyway and they used the clips to fix it. They told me "we felt the movement and saw the bulletin but don't understand how these clips will help". Anyway I actually got used to my seat lower, so no more movement. Sent from my iPhone using Tapatalk