I have the older version of this but I ran the wire through the factory antenna hole and sealed it with RTV. ran and zip tied the wire in the area in front of the wiper linkages (would just call it what it is but I would butcher the word CAWLING) then mounted it under one of the crossover support pieces. The antenna has an FM booster and is only $25.
http://shop4.outpost.com/product/231...H:MAIN_RSLT_PG