Being one of the last cool Saturdays left before summer hits here in Phoenix, I finally got around to drilling and mounting some antennas on the roof of my 2013 crew cab F-150 4x4, 3.5 EcoBoost. The truck has a sun roof which significantly limits antenna placement. With the sun roof fully open, I was able to place both antennas 12" from the rear of the roof to clear everything. Not ideal, but it works MUCH better than the mag mount I had been using. Stretches of highway on my commute that were completely deaf to our local repeater when using the mag mount antenna I can now hit easily.
Here's the final result:
I picked up a Laird X-ACT hole saw from a local radio shop and it worked great.
Holes marked and masked - measure twice, cut once!
I got a great tip from a fellow AGRC member which was to put down a protective layer above the headliner when it was dropped down in order to catch all the mess from drilling and sanding; I laid down an old towel on top of the headliner before I got started. I used gorilla tape to keep the coax from flopping around, and ran both cables behind the rear passenger side airbag (super important!), down the rear pillar and under the door trim up to the center console.
Antennas installed - in the photo is a Laird QWD144 1/4 wave 2m on the right and a Larid BB4502N 1/2 wave UHF for GMRS on the left:
I also have a Larsen 150/450/800 on the front fender for my scanner:
I currently have a Uniden BCD996P2 and a Motorla CDM1250 installed in the truck; an Kenwood 2M rig will be in there soon: