so the 2013 F150 Fx4 truck i recently bought already came with a Blendmount and a hardwire connection coming from the fuse box, however it is for a different type of radar detector than the one i currently have. i got the mount to work, but the power connection is a telephone plug looking one and i need an RCA looking plug. i found 2 possible harnesses on ebay, but im trying to decide what the best one would be.

This one plugs into the harness behind the RVM, but i cant figure out from the pics and details on how to plug it in. it just says to plug into a switched 12V and a ground. also it says there's an inline fuse, but i don't see one.
http://www.ebay.com/itm/191459327067?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
This one is the same as the one currently on there (only it has the correct plug) where i would have to run it in front of the hadliner, down the pillar, and into the fuse box, and it does have a removeable inline fuse.
http://www.ebay.com/itm/191459371535?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Any Info/Help is appreciated. thanks.