It seems that the plastic rails tuck under the legshied trim, which should give it a very clean, seamless look. Not so simple to take on and off though. The problem I'm having at this point is the opening for the headset is not big enough to go around the headset and close with the velcro strap, even if I work the edge in between the headset and top of glove box. I'm thinking I got a bunk one. Anyone else have success with this model? Tips?