Yeah, you just gotta work it in. You can do this by hand. Essentially, you pull it slightly back to get the edges to touch the seam, and roll it gently until it gets into the seam. Then it is as simple as working it in.
There is a thin layer of foam that you need to make sure doesn't curl up or it'll work against you. Every now and again when it gets hot, I work it in just to keep it from coming out.
I am going to use an adhesive if it comes out again, but you'd need to be very careful with applying with something like a Q-Tip...You'd also need to be sure you can quickly work it in. Takes practice....
'09 PSM G8 GT - OPG Intake, DOD-Delete w/ Stage 1C 218/229 .600 Lift 117.5LSA, Kooks 1 7/8 Mids, Solo Axle-Back w/ X-Pipe, SuperPro Bushings (Front and Rear). BMR Sway Bars (Red)
"If you want to criticize someone else's work, be sure that your own is in order first."