Can someone please help me out on which seal to use inside the dash vent retainer (black part). If I use the seal on the left it is too large and will not let me install the retainer in the bezel and the ball won't rotate. If I use the seal in the middle and right they don't seem to be wide enough and the ball grabs and wants to pull them out. I cant find any instructions on these. Does anyone have pics of theres or advice.