1 Don't Wear the Seatbelt
2 use the nextBelt Latch to the right of the Normal one.
3 adjust seat till it don't interfere
4 Modify seat belt
5 change Carry Position
6 paddle style Holster for easy position changing prior to entering Vehicle.
Iuse a IWB and Paddle style Holster and have no Problems, then again I dont use aSeat belt.