Cobra 75wxst CB Radio Thread - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 08-16-2013, 12:54 PM   #1
Supporting Member

WF Supporting Member
 
JeepGuy425's Avatar
 
Join Date: Jan 2012
Location: Florida
Posts: 151
Exclamation Cobra 75wxst CB Radio Thread

The hand-held Cobra 75 WX ST model seems to be really popular among Jeepers because of its compact size. I just picked one up and want to make sure I put it in a good spot the first time.

If you have one and wouldn't mind sharing how you wired it to a power source (fuse box - which #?, battery, cig lighter/splice lighter wire), and where you mounted the connector box it would be appreciated. Major plus if you can post a picture.
Attached Thumbnails
Click image for larger version

Name:	20130816_134944.jpg
Views:	106
Size:	223.8 KB
ID:	286578  

__________________
Roads? Where we're goin' we don't need "roads". ~ELB
JeepGuy425 is offline   Quote Quick Reply
Old 08-16-2013, 12:59 PM   #2
Jeeper
 
OBWan's Avatar
 
Join Date: Jul 2013
Location: Eastern Washington
Posts: 113
I mounted mine in the center console, the power box is mounted behind the cup holders, and the radio plug is threaded through the parking brake opening. I wired it directly to the battery, and my 3' firestik is mounted on the rear tire mount. Nice hidden install. I like it very much so far.

Do a google search for cobra 75 stealth install. a guy on another forum has a pretty good write up on it.

Thanks
Mike

__________________
2009 JKU Rubicon - Sunburst Orange
Rock Krawler 3.5" X-Factor Plus Mid-Arm Lift w/ Bilstein 5100's
315/75R/16 Duratracs on MG TKO's
OBWan is offline   Quote Quick Reply
Old 08-16-2013, 01:14 PM   #3
Jeeper
 
commodore_dude's Avatar
 
Join Date: Feb 2011
Location: Alpharetta, GA
Posts: 465
I wired mine to the subwoofer fuse with a fuse tap since it's unswitched, although with a 2002 you may have some bare switched and unswitched wires in the vicinity of the fuse box instead (I believe these went away by 03 when they were replaced with extra fuses for the subwoofer and locker pumps). I do not get any interference except when I use the horn, so it's fine since I was too lazy to get more wire and run to the battery. The power box I zip tied up behind the glove box next to the fuse box, and the mic I mounted to the right of the steering wheel, using one of the dash screws through its existing hole (a longer screw would help as I do manage to pull it out every once in a while if I don't slip the mic back on the mount just right). 3' Firestik on a passenger side Teraflex taillight mount, with an 18' cable that runs right in at the bottom-right corner of the hard top opening and tucks under the carpet all the way up to the dash. Clean, easy, functional.
commodore_dude is offline   Quote Quick Reply
Old 08-16-2013, 01:15 PM   #4
Supporting Member

WF Supporting Member
 
JeepGuy425's Avatar
 
Join Date: Jan 2012
Location: Florida
Posts: 151
Thanks OBWan and commodore, I did a search on google and found an awesome write up with pictures here: Cobra 75WXST CB Radio

Highly recommended for anyone installing a Cobra75 in a TJ.
__________________
Roads? Where we're goin' we don't need "roads". ~ELB
JeepGuy425 is offline   Quote Quick Reply
Old 08-16-2013, 04:02 PM   #5
Jeeper
 
Lanco's Avatar
 
Join Date: Oct 2012
Location: Lancaster PA
Posts: 219
So far i've roughed mine in. i need to clean up the install and finish it still but i think this gives you a good starting point

The little box.
a.Mounted it behind the glove box.
b.Power comes from fuse 19. use a connector that allows for the use of the original fuse because it controls your cig lighter.
c.Ground to a bolt on the firewall directly below the glove box.





2. The Connector

I removed the screw shown in the picture and slid in the mounting plate (that came included with the CB) between the plastic and metal. It is very secure and you cant see it from your normal seating position.



Hope this helps get you started
__________________
carpets are for living rooms

01
Sport
/ 5spd / 4.5" / 35x12.5 / 4.88

Lanco is offline   Quote Quick Reply
Old 08-16-2013, 04:41 PM   #6
Jeeper
 
scot68's Avatar
 
Join Date: Apr 2011
Location: Mesa, AZ
Posts: 454
Great timing for this thread, I am about to order one! Do any of you guys run an external speaker? I'm reading mixed reviews on that, some say it's not needed while others do.
scot68 is offline   Quote Quick Reply
Old 08-16-2013, 05:48 PM   #7
Supporting Member

WF Supporting Member
 
JeepGuy425's Avatar
 
Join Date: Jan 2012
Location: Florida
Posts: 151
I've spent all day reading write ups about the Cobra75 in multiple forums - almost all say an external speaker is needed because the handheld is difficult to hear in a Jeep on the highway. I just hopped back on to figure out which fuse to use, one that is always hot. When I tried 19 it only worked when I turned the key.... Im using a fuse tap like in the picture. I'm not a smoker, but I always thought the lighter was suppose to work when the Jeep was off?
Attached Thumbnails
Click image for larger version

Name:	fusetap.jpg
Views:	74
Size:	79.1 KB
ID:	286664  
__________________
Roads? Where we're goin' we don't need "roads". ~ELB
JeepGuy425 is offline   Quote Quick Reply
Old 08-16-2013, 07:47 PM   #8
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 29,227
Images: 2
Two things...
1) Yes for sure you'll want to install an external speaker. The speaker inside the microphone is tiny & hard to hear except in a quiet environment.
2) Always power a 2-way radio, especially a CB, directly from the battery. Sources of power in the fuse box area are generally electrically "noisy" from things like the fuel pump, alternator, etc.. The battery is, by far, the cleanest and quietest source of power which is key to a 2-way radio operating with as little added noise as possible.

A good source of clean power with a direct connection to the battery that is easier to connect to is the lug at the rear of the PDC (Power Distribution Center). That lug is under a small snap-off cover at the side of the PDC nearest the battery. Crimp on a ring-lug connector onto the power wire & place it under that lug's nut. Voila, a good easy to connect to source of good clean 12 volt power.
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 08-16-2013, 07:54 PM   #9
Supporting Member

WF Supporting Member
 
JeepGuy425's Avatar
 
Join Date: Jan 2012
Location: Florida
Posts: 151
Thanks Jerry, I saw all your posts on all the other threads/forums about connecting directly to the battery. Good advice.

For those of us that are ok with a noisy power source, somewhat stubborn, and determined to use the fuse box behind the glove box.... Is there a specific fuse that will allow the cb to stay on when the Jeep is off?
__________________
Roads? Where we're goin' we don't need "roads". ~ELB
JeepGuy425 is offline   Quote Quick Reply
Old 08-16-2013, 07:57 PM   #10
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 29,227
Images: 2
It's so easy to pass a wire through the firewall via a small drilled hole in the rubber plug just above the accelerator pedal that I'm being stubborn myself about using anything but that direct battery connection.
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 08-16-2013, 08:23 PM   #11
Supporting Member

WF Supporting Member
 
JeepGuy425's Avatar
 
Join Date: Jan 2012
Location: Florida
Posts: 151
Ok, done with the install. Thanks Lanco for the tip about using the existing screw for the mounting plate, that worked perfectly. Here's a picture of how it looks. I was fortunate enough to find a little ledge behind the glovebox that I could rest the connector box on. It was tricky getting it in there and is pretty snug - no tie wraps or screws needed. Overall a very compact and hidden install, I like it. Still using #19 on the fuse box though....might have to take up Jerry's advice to use the battery.
Attached Thumbnails
Click image for larger version

Name:	20130816_200557.jpg
Views:	106
Size:	225.4 KB
ID:	286721  
__________________
Roads? Where we're goin' we don't need "roads". ~ELB
JeepGuy425 is offline   Quote Quick Reply
Old 08-16-2013, 11:38 PM   #12
Jeeper
 
OhSixTJ's Avatar
 
Join Date: Mar 2013
Posts: 1,018
Quote:
Originally Posted by Lanco View Post
Hope this helps get you started
It would if you told us where that screw you loosened to mount the mic connector was instead of making us search our jeeps using a super narrow field-of-view pic as reference.
OhSixTJ is offline   Quote Quick Reply
Old 08-19-2013, 08:16 AM   #13
Jeeper
 
erickpl's Avatar
 
Join Date: Jan 2007
Location: Alabama
Posts: 2,295
Send a message via AIM to erickpl
I installed mine in the center stack under my switches. Removed my ashtray and installed 3 more switch positions. Had the extra cig lighter hole, which fits the grommet and plug for the 75WxSt perfectly.

__________________
-Paul

-97 TJ with a few mods. PM with questions.
http://img.photobucket.com/albums/v3...reenjeep2a.jpg
erickpl is offline   Quote Quick Reply
Old 10-04-2013, 01:05 AM   #14
Jeeper
 
MagicMtnDan's Avatar
 
Join Date: May 2011
Location: Southern Taxifornia
Posts: 322
It would be great if someone posted pics and information on how to remove the subwoofer in order to run the coaxial cable through there to the rear gate.

Also, does a (Teraflex) CB bracket mounted to the tire carrier need to be grounded or are the spare tire bolts through the bracket and the tire carrier enough?
__________________
Bright White 2014 JKU Rubicon
I love my country; it's the government I fear

If you're going through hell, keep going.
-Winston Churchill
MagicMtnDan is offline   Quote Quick Reply
Old 10-04-2013, 07:15 AM   #15
Jeeper
 
8052949's Avatar
 
Join Date: Nov 2012
Posts: 90
Quote:
Originally Posted by MagicMtnDan View Post
It would be great if someone posted pics and information on how to remove the subwoofer in order to run the coaxial cable through there to the rear gate. Also, does a (Teraflex) CB bracket mounted to the tire carrier need to be grounded or are the spare tire bolts through the bracket and the tire carrier enough?
The powder coating on the Teraflex bracket need to be sanded down on the antenna mount and one of the spots it touches the Jeep because it won't ground. You can run a ground wire but you can get good contacts by sanding and it won't be seen if you do it in the right places.
8052949 is offline   Quote Quick Reply
Old 10-04-2013, 08:58 AM   #16
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 29,227
Images: 2
Quote:
Originally Posted by MagicMtnDan View Post
Also, does a (Teraflex) CB bracket mounted to the tire carrier need to be grounded or are the spare tire bolts through the bracket and the tire carrier enough?
The antenna mount's requirements for a good solid "RF" ground connection are very demanding before the antenna will work up to its full connection.

The Teraflex mount must have a good bare metal to bare metal ground connection to the Jeep tub, adding just a wire to ground it by itself isn't going to work well as that RF ground connection I mentioned it needs.

Another super-critical need is that the antenna mount the antenna screws into must have a good RF ground connection to the Teraflex mount too. So on the BOTTOM side of the Teraflex mount where the antenna mount touches, there needs to be a bare metal connection there too. Grind a ring of powder coating away from the Teraflex mount perhaps 3/16" wide so the antenna mount will touch bare metal all the way around. The top of the Teraflex mount where the antenna mount sticks down through it does not need to have its powder coating ground away, it's the underneath side of the Teraflex mount that does.

Also, pay close attention that your mount is assembled exactly as below, which is the recommended type of mount. The top of the antenna mount where the antenna is screwed into it is insulated from the Teraflex mount by the 'insulated shoulder washer. The lower part of the antenna mount that is below the Teraflex mount, labeled the 'SO239 Coax Connector' is the part that needs a bare metal connection from the Teraflex mout.

Those two ground connections are critical to an antenna working properly so it can be tuned for a good low SWR. Nearly every Jeep owner who visits me to figure out an antenna problem didn't provide the proper grounds as described above.
Attached Thumbnails
Click image for larger version

Name:	ant-mount-showing-no-touch.JPG
Views:	33
Size:	33.7 KB
ID:	403137  
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 10-04-2013, 10:31 PM   #17
Jeeper
 
MagicMtnDan's Avatar
 
Join Date: May 2011
Location: Southern Taxifornia
Posts: 322
Thanks guys! I appreciate your input and will start removing powder coating tomorrow.

__________________
Bright White 2014 JKU Rubicon
I love my country; it's the government I fear

If you're going through hell, keep going.
-Winston Churchill
MagicMtnDan is offline   Quote Quick Reply
Reply

Tags
cb install , cb radio , cobra , hand held

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 06:22 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC