In addition to what comes in the box, you will also need the following:
Antennas and associated cables
Screws
For sheet metal – Four #8 self-tapping screws (length depends on material and mounting position)
For threaded holes – Four #8-32 machine screws (length depends on material and mounting position)
Fuses
IBR900
DC input steady-state voltage range: 9–33 VDC (requires inline fuse for vehicle installations)
For 12 VDC installations, use a 3 A fuse
For 24 VDC installations, use a 2.5 A fuse
IBR1700
DC input steady-state voltage range: 9–36 VDC (requires inline fuse for vehicle installations)
For 12 VDC installations, use a 5 A fuse
For 24 VDC installations, use a 2 A fuse