I got these 8" speakers made for a wake board boat and a JBL "gauge style" radio. It's going to be a super cool setup. The speakers mount under the lightbar facing back.
Mounting the speakers on these receiver type things I made and they lock in place to deter theft. They can come off and clip on the side of the rack for use at camping when the bed is blocked by a truck bed tent.
The lightbar is on an actuator. Also have my VHF antenna up there on a motorized mount to fold it down when going into my apartment parking garage.
I'll keep u guys posted!
--john