Looking for advice from someone who has actually done this themselves.
Many thanks:

I used thin self-stick foam sheets (available at Michaels Crafts stores). Cut thin strips and stick these along the window gap edge. This gives the trim pieces more to bite onto.81SPIDERMATT wrote:mine comes off when you roll up the window .... i would love to know if there is some type of clip that i am missing or do i just need to pinch it a bit so it stays on better .... Matt