i know i know. i've had it in a few dfferent places...
alon mount(between the bed and tailgate)(no pics)
mirror mounts mounted on the box itsself(HORRIBLE location due to improper grounding of the antenna). The only way to properly ground an antenna to the toolbox is putting a ground strap from each corner of the toolbox to the bed using self tappers....straps must be the same length.
Right now i'm running a Super Duty fender mount....fits the angles of the ranger perfectly. I shortened mine up about 3/4" though...so i mounted it crooked. lol. I highly sugest the style coax i'm usng...the stranded and crimped style...none of this screw on bs. IF you get a mount that has a seperate bolt for the ground, dont use it. Ground the coax directly to the bracket and the antenna stud itsself. In my pic, i replaced the phillips head with a stainless allen head and put a nut on the bottom to fill that ugly hole that wasn't being used.
Ive heard good things involving ball mounts mounted directly to the body...but i wasn't willing to cut holes in my truck. lol.
The best location by far has been my current fender mount. The problems with the others was the antenna. you can have a $50 base model cb and a good antenna setup and still outperform a BADASS $200 peaked and tuned 29ltd with an improperly setup antenna. it's all about the antenna bro. My biggest hold up was the antenna with the other setups...iwas being out perfomed by cheap junk...now i get out like a mother!
good luck with what you choose.