Has anyone installed a 5th wheel hitch with the 5th wheel prep on a 2013 or 2014?If the answer is yes,what did you use?I have a reese 20,000 hitch that I just bought this year. Looks like I'm going to get a 2014 3500SRW. Don't want to buy a new truck and can't get a hitch installed as soon as I get it. I really want the light plug in the bed,don't care for the 5 holes in the bed.