WJ CB and Mount Write-Up (Cobra 75) - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > General Technical Discussions > Electrical, Audio, GPS, & 2-Way Radio > WJ CB and Mount Write-Up (Cobra 75)

Artec Flash Sale - 15% off and Free Shipping over $300Rugged Ridge Bumpers, Winches, Performance from CCOR!JK Front Axle Truss

Reply
Unread 05-17-2008, 07:04 PM   #1
blovingier
Registered User
1999 WJ 
 
Join Date: Sep 2007
Location: Aberdeen, MD
Posts: 647
WJ CB and Mount Write-Up (Cobra 75)

Ok, there are probably a ton of different ways to do this, but this is the way I did it. Here it goes.

First, I did my research and found what major components I wanted for my CB setup. I chose to go with the Wilson 4' fiberglass antenna (about $25 shipped), and the Cobra 75 ($95 shipped) for it's compact size. I needed a way to mount the antenna to my Jeep, so I decided to make a mounting bracket out of two scrap pieces of steel I found on the side of the road. I welded them together and came up with this:



It came out just as I had planned. I wanted a compact, yet strong mounting bracket. Here it is after I drilled all the holes for the antenna mount and coax, painted and installed it on the Jeep.




I picked up the mount for $3 at Radio Shack and the spring for $8 at Love's truck stop. Before I mounted everything, I ground down to bare metal underneath the mounting screws and the underside of where the antenna and spring screwed on (inside the triangle). I ran the coax through the grommet for the tail lights and through the rear quarter-panel towards the front of the Jeep. I notched the tail light with a drill bit to keep from pinching the coax. This is right by where my tow lighting harness clips in.



After I had that all done, it was time for the wiring and installation of the CB. Next!I decided to run my power wire straight from the battery as per factory recommendations and from what I've read on the internet. The first course of action was finding a hole in the firewall. I chose to go through right behind the brake fluid reservoir.

__________________
[B][FONT="Arial"][SIZE="4"][COLOR="Blue"]"GRITZ"[/COLOR][/SIZE][/FONT][/B]

[B]99 Jeep Grand Cherokee Laredo[/B] - [COLOR="Red"][SIZE="4"]Totalled[/SIZE][/COLOR]
-3" lift w/Bilsteins - - - - - - - - - - - - - - - - - -30.5" Pirelli Scorpion ATRs
-[URL="http://www.jeepforum.com/forum/showthread.php?t=494045"]Clear Lenses[/URL] - - - - - - - - - - - - - - - - - - -[URL="http://www.jeepforum.com/forum/showthread.php?p=5229329#post5229329"]Cobra 75 CB w/Wilson 4' Antenna[/URL]
-[URL="http://www.jeepforum.com/forum/showthread.php?p=7008250#post7008250"]Home-Brew Discos[/URL]- - - - - - - - - - - - - - - - - -[URL="http://www.jeepforum.com/forum/showthread.php?t=734768&highlight=diamond+plate+hitch+cover"]Diamond Plate Hitch Cover[/URL]

[B]07 Compass (wife's ride)[/B][COLOR="Red"][SIZE="4"]Sold[/SIZE][/COLOR]
-Stock
blovingier is offline   Reply With Quote
Unread 05-17-2008, 07:04 PM   #2
blovingier
Registered User
1999 WJ 
 
Join Date: Sep 2007
Location: Aberdeen, MD
Posts: 647
I decided to run my power wire straight from the battery as per factory recommendations and from what I've read on the internet. The first course of action was finding a hole in the firewall. I chose to go through right behind the brake fluid reservoir and evap canister.



Next was to run the wire to the battery, cover it with wire loom, and zip tie it in place. I just ran it over the AC condenser, across the engine compartment and to the grommet behind the evap canister.






Then I zip tied everything in place up front. You can’t even tell where it is now.



Note: I DID NOT hook the power wire to the battery at this time to keep myself from shocking the crap out of myself and ruining things (i.e. setting my Jeep on fire!)



Next was routing it inside. I took the wire and ran it in line with some wires and cables that were already there. I once again used my uber awesome zip tying skills to keep it up out of the way.



I ended up with the wire underneath my center console. Just where I wanted it to be.



Once again, with all the panels installed again, you can only see the wire if you get down and look.



I then took my CB power wire (supplied with the CB) and spliced it and my power wire from the battery together and made it all pretty with some heat shrink tubing.



I then found a factory grounding post and hooked up my ground wire. I scraped away the paint anyways, but it probably wasn't necessary.

__________________
[B][FONT="Arial"][SIZE="4"][COLOR="Blue"]"GRITZ"[/COLOR][/SIZE][/FONT][/B]

[B]99 Jeep Grand Cherokee Laredo[/B] - [COLOR="Red"][SIZE="4"]Totalled[/SIZE][/COLOR]
-3" lift w/Bilsteins - - - - - - - - - - - - - - - - - -30.5" Pirelli Scorpion ATRs
-[URL="http://www.jeepforum.com/forum/showthread.php?t=494045"]Clear Lenses[/URL] - - - - - - - - - - - - - - - - - - -[URL="http://www.jeepforum.com/forum/showthread.php?p=5229329#post5229329"]Cobra 75 CB w/Wilson 4' Antenna[/URL]
-[URL="http://www.jeepforum.com/forum/showthread.php?p=7008250#post7008250"]Home-Brew Discos[/URL]- - - - - - - - - - - - - - - - - -[URL="http://www.jeepforum.com/forum/showthread.php?t=734768&highlight=diamond+plate+hitch+cover"]Diamond Plate Hitch Cover[/URL]

[B]07 Compass (wife's ride)[/B][COLOR="Red"][SIZE="4"]Sold[/SIZE][/COLOR]
-Stock
blovingier is offline   Reply With Quote
Unread 05-17-2008, 07:05 PM   #3
blovingier
Registered User
1999 WJ 
 
Join Date: Sep 2007
Location: Aberdeen, MD
Posts: 647
I now needed to mount my CB control box. I went right in front of my shift levers. I once again used my best friend Mr. Zip-Tie and held it in place and hooked up my coax cable.



It's just super small.

Now I needed to run the quick connect for my hand mic (which also holds all of the controls). I first drilled and slashed out a hole in the side of my center console and drilled holes for the mounting screws.




Then I put the plate and connection coming from the CB box in place and secured. I even got a chance to sneak another zip tie in (look closely).



I then hooked up the hand mic and mounted the clip for it right next to my steering column.




Because the hand mic is quite large in comparison to others I've used, in this location it makes it a little harder to put my key in and start the Jeep, but not too bad.



Then I hooked up the power wire at the battery and tested it with my neighbor. It works! I put everything back together and stuffed all the coax I had hanging around throughout the Jeep. All I need to do now is check my SWR and I'm ready to roll. Hope you enjoyed the show!
__________________
[B][FONT="Arial"][SIZE="4"][COLOR="Blue"]"GRITZ"[/COLOR][/SIZE][/FONT][/B]

[B]99 Jeep Grand Cherokee Laredo[/B] - [COLOR="Red"][SIZE="4"]Totalled[/SIZE][/COLOR]
-3" lift w/Bilsteins - - - - - - - - - - - - - - - - - -30.5" Pirelli Scorpion ATRs
-[URL="http://www.jeepforum.com/forum/showthread.php?t=494045"]Clear Lenses[/URL] - - - - - - - - - - - - - - - - - - -[URL="http://www.jeepforum.com/forum/showthread.php?p=5229329#post5229329"]Cobra 75 CB w/Wilson 4' Antenna[/URL]
-[URL="http://www.jeepforum.com/forum/showthread.php?p=7008250#post7008250"]Home-Brew Discos[/URL]- - - - - - - - - - - - - - - - - -[URL="http://www.jeepforum.com/forum/showthread.php?t=734768&highlight=diamond+plate+hitch+cover"]Diamond Plate Hitch Cover[/URL]

[B]07 Compass (wife's ride)[/B][COLOR="Red"][SIZE="4"]Sold[/SIZE][/COLOR]
-Stock
blovingier is offline   Reply With Quote
Unread 05-17-2008, 07:46 PM   #4
paulmatyn
Senior Member
 
paulmatyn's Avatar
1992 XJ Cherokee 
 
Join Date: Nov 2006
Location: Carlsbad, CA
Posts: 969
you might get some excess noise in your radio due to the fact that you used a body ground for your radio. the best way to do it is to run both the positive and negative straight to the battery.
__________________
Quote:
Originally Posted by Beefstew View Post
brain guts all over the windshield!!!!!!!!!!!!!!!!
Quote:
Originally Posted by WillysEdition04 View Post
After reading 7-8 of your posts I've come to the conclusion that you may be mentally retarded, which is why I won't ask what "brain guts" are.
Quote:
Originally Posted by Duck Dodgers View Post
I'd rather take the chance and belive in God than take the chance and not.
Cuz ya got nothing to lose by believing, but ya sure might if ya don't.
White Jeep Club Member-2027
paulmatyn is offline   Reply With Quote
Unread 05-17-2008, 08:18 PM   #5
blovingier
Registered User
1999 WJ 
 
Join Date: Sep 2007
Location: Aberdeen, MD
Posts: 647
??? I guess I'm not understanding what you mean. The entire body of the Jeep is grounded to the battery. It should be fine the way it is. I guess if I have problems I'll try that, but it's super clear right now.
__________________
[B][FONT="Arial"][SIZE="4"][COLOR="Blue"]"GRITZ"[/COLOR][/SIZE][/FONT][/B]

[B]99 Jeep Grand Cherokee Laredo[/B] - [COLOR="Red"][SIZE="4"]Totalled[/SIZE][/COLOR]
-3" lift w/Bilsteins - - - - - - - - - - - - - - - - - -30.5" Pirelli Scorpion ATRs
-[URL="http://www.jeepforum.com/forum/showthread.php?t=494045"]Clear Lenses[/URL] - - - - - - - - - - - - - - - - - - -[URL="http://www.jeepforum.com/forum/showthread.php?p=5229329#post5229329"]Cobra 75 CB w/Wilson 4' Antenna[/URL]
-[URL="http://www.jeepforum.com/forum/showthread.php?p=7008250#post7008250"]Home-Brew Discos[/URL]- - - - - - - - - - - - - - - - - -[URL="http://www.jeepforum.com/forum/showthread.php?t=734768&highlight=diamond+plate+hitch+cover"]Diamond Plate Hitch Cover[/URL]

[B]07 Compass (wife's ride)[/B][COLOR="Red"][SIZE="4"]Sold[/SIZE][/COLOR]
-Stock
blovingier is offline   Reply With Quote
Unread 05-17-2008, 10:19 PM   #6
paulmatyn
Senior Member
 
paulmatyn's Avatar
1992 XJ Cherokee 
 
Join Date: Nov 2006
Location: Carlsbad, CA
Posts: 969
the best grounding for the cb is directly to the battery. there can be noise from using a body ground. yes, it does ground to the battery, but so does many other things than can cause noise and interfierence. if it works then use it, but for best performance the battery is perfered.
__________________
Quote:
Originally Posted by Beefstew View Post
brain guts all over the windshield!!!!!!!!!!!!!!!!
Quote:
Originally Posted by WillysEdition04 View Post
After reading 7-8 of your posts I've come to the conclusion that you may be mentally retarded, which is why I won't ask what "brain guts" are.
Quote:
Originally Posted by Duck Dodgers View Post
I'd rather take the chance and belive in God than take the chance and not.
Cuz ya got nothing to lose by believing, but ya sure might if ya don't.
White Jeep Club Member-2027
paulmatyn is offline   Reply With Quote
Unread 05-18-2008, 12:13 AM   #7
SpeedyCat3
Survivor
 
SpeedyCat3's Avatar
1997 ZJ 
 
Join Date: Dec 2002
Location: Planet Earth
Posts: 2,656
The negative power wire should be wired directly to the battery also, and the chassis of the unit should be grounded to the body. Two different grounds, one is rf ground, the other is electric ground. This should cut down in noise induction onto the receive side.
Also, you should fuse the hot wire as close to the battery as possible, besides the fuse you have close to the radio. You want that fuse to blow immediately as close to the battery instead of melting away inside the vehicle should anything go wrong.
The install wires for my Yaesu were fused on both pos and neg lead at the battery.
__________________
_o o o o_
|_Jeep_|
(OlllllllO)
[] ---o-[]

My 97 ZJ Build
SpeedyCat3 is offline   Reply With Quote
Unread 05-18-2008, 09:23 AM   #8
blovingier
Registered User
1999 WJ 
 
Join Date: Sep 2007
Location: Aberdeen, MD
Posts: 647
Ok, I was thinking about putting another fuse up by the battery, but just used to fuse that came with the CB. I'll see about the ground if it causes any problems for me.
__________________
[B][FONT="Arial"][SIZE="4"][COLOR="Blue"]"GRITZ"[/COLOR][/SIZE][/FONT][/B]

[B]99 Jeep Grand Cherokee Laredo[/B] - [COLOR="Red"][SIZE="4"]Totalled[/SIZE][/COLOR]
-3" lift w/Bilsteins - - - - - - - - - - - - - - - - - -30.5" Pirelli Scorpion ATRs
-[URL="http://www.jeepforum.com/forum/showthread.php?t=494045"]Clear Lenses[/URL] - - - - - - - - - - - - - - - - - - -[URL="http://www.jeepforum.com/forum/showthread.php?p=5229329#post5229329"]Cobra 75 CB w/Wilson 4' Antenna[/URL]
-[URL="http://www.jeepforum.com/forum/showthread.php?p=7008250#post7008250"]Home-Brew Discos[/URL]- - - - - - - - - - - - - - - - - -[URL="http://www.jeepforum.com/forum/showthread.php?t=734768&highlight=diamond+plate+hitch+cover"]Diamond Plate Hitch Cover[/URL]

[B]07 Compass (wife's ride)[/B][COLOR="Red"][SIZE="4"]Sold[/SIZE][/COLOR]
-Stock
blovingier is offline   Reply With Quote
Unread 05-18-2008, 01:00 PM   #9
paulmatyn
Senior Member
 
paulmatyn's Avatar
1992 XJ Cherokee 
 
Join Date: Nov 2006
Location: Carlsbad, CA
Posts: 969
Quote:
Originally Posted by Speedycat View Post
The negative power wire should be wired directly to the battery also, and the chassis of the unit should be grounded to the body. Two different grounds, one is rf ground, the other is electric ground. This should cut down in noise induction onto the receive side.
Also, you should fuse the hot wire as close to the battery as possible, besides the fuse you have close to the radio. You want that fuse to blow immediately as close to the battery instead of melting away inside the vehicle should anything go wrong.
The install wires for my Yaesu were fused on both pos and neg lead at the battery.
how would i ground the chassis, and where to? is this the one that would go to the chassis ground on the car? could i just attatch a grounding cable to the bracket the radio is on?
__________________
Quote:
Originally Posted by Beefstew View Post
brain guts all over the windshield!!!!!!!!!!!!!!!!
Quote:
Originally Posted by WillysEdition04 View Post
After reading 7-8 of your posts I've come to the conclusion that you may be mentally retarded, which is why I won't ask what "brain guts" are.
Quote:
Originally Posted by Duck Dodgers View Post
I'd rather take the chance and belive in God than take the chance and not.
Cuz ya got nothing to lose by believing, but ya sure might if ya don't.
White Jeep Club Member-2027
paulmatyn is offline   Reply With Quote
Unread 05-18-2008, 03:21 PM   #10
SpeedyCat3
Survivor
 
SpeedyCat3's Avatar
1997 ZJ 
 
Join Date: Dec 2002
Location: Planet Earth
Posts: 2,656
Some radios do have a grouding screw in the back part of the chassis. If it is not marked, use any of the screws that secure lets say the covers of the radio to the chassis of the radio. ( most radios have a square chasis with two half covers. Y usually just use a piece of old coax mesh as grounding strap. If you want it to look nicer, do not peel the black cover of the coax complete, just the ends to make the mesh visible enough to ground to the radio chassis and to the heep tub.
__________________
_o o o o_
|_Jeep_|
(OlllllllO)
[] ---o-[]

My 97 ZJ Build
SpeedyCat3 is offline   Reply With Quote
Unread 05-18-2008, 04:46 PM   #11
paulmatyn
Senior Member
 
paulmatyn's Avatar
1992 XJ Cherokee 
 
Join Date: Nov 2006
Location: Carlsbad, CA
Posts: 969
thanks speedycat.
__________________
Quote:
Originally Posted by Beefstew View Post
brain guts all over the windshield!!!!!!!!!!!!!!!!
Quote:
Originally Posted by WillysEdition04 View Post
After reading 7-8 of your posts I've come to the conclusion that you may be mentally retarded, which is why I won't ask what "brain guts" are.
Quote:
Originally Posted by Duck Dodgers View Post
I'd rather take the chance and belive in God than take the chance and not.
Cuz ya got nothing to lose by believing, but ya sure might if ya don't.
White Jeep Club Member-2027
paulmatyn is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.