I'm upgrading my B&W companion (on my 1995 2500) with a new 2015 3500, with the 5th wheel prep, next week. I know I can buy the new base for the puck system and use the old head unit, but is there an adapter out there to use the old base with the square peg, that fits the Dodge round hole? I'm mostly towing a 11,000 pound max 5th wheel. It looks like the new base is much larger (and heavier) and I will not be able to store my 8' ladder in the bed using the new style base. Or should I just get a new ladder?