CB mount where abouts

There are two cb hood/fender mounts from Accessories Unlimited but this one particular CB mount would seem to be the easyiest to mount if I can just figure out where it mounts and what the bottom bolt is for. The other mount I have used in the past and it requires those exspansion plugs for the bolts this one just looks easier to mount.

This is the one I prefer if it mounts between the hood and fender
http://www.walcottcb.com/accessories-unlimited-fender-mount-for-chevy-pickupssuv-p-1184.html

The other one that is listed as a hood mount
http://www.walcottcb.com/accessories-unlimited-hood-mount-for-gmcchevy-pickups-augm1l-p-1179.html

improvisation, man. get the cheaper one and figure out how to put it where ever the hell you want it.

The best one I have ever used was a $10, window mounted, walmart antenna. It would easily send and recieve clear signals up to a 1/4 mile. Thats all the farther I needed it to go because we would use CBs to communicate durring "Model A" runs.