Well, this is how I did it ... works great ... easily removed and doesn't look bad at all in person. I like it on the outside so the Valentine can receive front and back. I use a H.A.R.D. system so I can 'hear' it ... www.legalspeeding.com ... works 100% of the time. The nylon thread is for a 'just in case'. But, I have never had one fall off after I use the Velcro. Once, in the past I HAVE had one fall off because I didn't properly put it in the mount! Now I'm paranoid about loosing another GPS. Anyway, I hope the pic's show enough. We really do love our RT-S!!
Tony
Tony