A couple weeks ago I asked a question about mounting a CB antenna at the oem AM/FM antenna location on our trucks. The question was basically asking if anyone has done something like this and if it was even possible. Well of course anything is possible, but what really matters is if the CB antenna will work well in the location.
As it turns out, the CB antenna will work well in the stock AM/FM location!
However, it was no easy task making this set up work. Oh and before I get too involved in the processes I took for my CB install, the whole idea behind this is to be stealthy and still maintain a stock look for the truck! I wasnít worried about receiving am/fm broadcasts because I use my Sirius satellite radio 100% of the time. However, if anyone still wanted to have their am/fm radio operational you could use a splitter sold by Firestik which would allow the CB antenna to receive am/fm radio (with a slight loss of reception) or mount a separate low profile fm antenna.
The equipment I chose to use for this install is:
-Cobra 75WXST http://www.walcottcb.com/cobra-75wxs...dio-p-520.html
-Firestik Firefly FL3B 3' http://www.walcottcb.com/firestik-fl...nna-p-897.html
-Firestik Stud Mount http://www.walcottcb.com/firestik-k4...ion-p-247.html
-Firestik mini -8 (RG8X) 6' coax http://www.walcottcb.com/firestik-r7...ble-p-814.html
After I got my CB radio components I still needed something from the junkyard. What I needed from the junkyard was another stock am/fm antenna base so that I could modify it to accept the CB radio antenna mounting stud. This part was key in making everything look stock.
stock am/fm ford ranger antenna base
In order to modify this base to accept a CB antenna mounting stud I needed to cut off the cylindrical components and smooth it down so that it was a flat piece of metal.
The dremel looks cool and all, but I ended up using a hacksaw to carefully cut the metal.
After the antenna base was cut I had to enlarge the previous opening for the am/fm components to 1/2" for the CB mounting stud.
The plastic that the metal sits on acts like a shim to keep the metal level on the rangers hood (the location close to the hood, obviously are am/fm antennas aren't mounted on the hood.)
Speaking about that plastic shim... I had to enlarge it enough so that it would not interfere with the CB mounting stud as pictured below
The full view ready to be screwed into the stock ranger am/fm location
where the CB antenna screws into
PL-259 connector end
After I made my mount it was time to move on to the truck. I cut my trucks am/fm antenna and my CB coax at the PL-259 connector end so that I could tape my CB coax wire to the am/fm wire. That way I could feed the Coax through as I pulled the am/fm antenna.
Orange wire=am/fm antenna coax
After I finished running my coax I had to install a PL-259 connector back on the CB coax. Then screw that end into my CB mounting stud and screw that whole unit down to the truck.
Old am/fm mount
New CB antenna mount!
The next step to my install was to run the wiring to the junction box of my CB. This was done by using 12awg size wire directly to the battery. The wire was fused about four inches from the battery for safety purposes.
I wired my CB radioís ground wire to the factory ground underneath the center console. This allowed me to run a five-inch ground wire to the CB junction box. I imagine this among other reasons, is why my CB radio has such little electrical noise!
CB wire fastened to the battery using a ring terminal.
All along I new where I was going to place the CB radioís junction box so thatís why I bought the specific length of CB coax at 6 ft and ran my power and ground wires a certain length.
This is the Cobra 75ís junction box. This is what makes this CB so practical for me. Also note that the Rangerís insulation had to be cut and removed in order to have access to the Rangerís firewall for mounting (and yes I absolutely made sure nothing was behind the junction box mounting location before I drilled my pilot holes).
So I think I covered all the bases. I explained my CB mount, running coax, power wires and mounting the CB junction box. Now itís time for the finished product!
Notice the mount is still able to have the plastic cap fit over it.
Oh and average SWR?
Ultimately this was a very fun install but time consuming. In total this job took a very solid eight hours of work. However, this was my first CB install so there was a learning curve. Next time Iíll get the job done in four hours haha!