Yes, if you opted for the NMO mount it's integrated into the housing. There is a cable wired into the NMO already that comes with the kit
I went with this antenna and cap (get the cap, if you don't run the antenna all the time)
Cap:
https://www.amazon.com/gp/product/B004Z941MU/?tag=fordraptorforum-20
Antenna:
https://www.amazon.com/gp/product/B00E48AE6Y/?tag=fordraptorforum-20
For those just tuning in (get it, tuning, cause ya know, antenna... hah hah? ahh forget it!)
We sell/stock the GJ Motorsports Brake Light Kits over at 4x4TruckLEDs.com - We also stock the Baja Designs lights (naturally). As of 6/13/2019 we're sold out BUT we have a new inventory order in already with GJ to restock our shelves.
You can grab the brake light here:
http://www.4x4truckleds.com/gj-motorsports-3rd-brake-light-for-2015-ford-f-150-2017-ford-super-duty/