It arrived yesterday and I spent almost an hour fiddling with it before I gave up. I have it in the 2nd row, outboard, driver's side using the shoulder/lap belt in the LBP. This was the first way I attempted yesterday but I didn't like where the seat belt was riding and bunching up. SBP was a no-go, the buckle ended up keeping it pushed away from the seat back and I couldn't get in tight. So back to the LBP. Is it OK that the seat belt is pushing up under the arm rests? Is doesn't appear to affect the movement. Thanks for your help.