Installed some some apssenger floorboards last night. Mount and base went in pretty easy. When it came time to push the insert in on the top of the base the left side went in but the right will not seat. When I do get it half way seated it pops back out within minutes. I imagine there is something binding up and causnig this but I cannot figure it out. Anyone have any expirence with these that can throw me a tip or trick?