Question about Cobra 18 WX ST II 40-Channels Base CB Radio

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Cb radio installation

I have three wires- red, orange, and black.
All I have is 18 gauge red wire.
Question: can I use the red wire that I already have to make the black and orange wires longer or do I need to go out and buy a roll of black and orange to match with the existing black and orange wires?

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  • rscttgrg
    rscttgrg Jan 10, 2012

    THE ORANGE WIRE NEEDS TO GO TO THE CIG LIGHTER THE RED WIRE NEEDS TO GO TO THE ACCESSORIES ON THE FUSE BLOCK BLACK IS GROUND THIS THE FIRST COBRA IV'E HAD THAT HAD TWO POWER WIRES OTHER WISE THE RADIO WILL NOT FUNCTION IT SAYS ONLY TEMPORARLY THAT YOU CAN CONNECT THE TWO COLORED WIRES TO GET POWER OR I GUES SOMETHING BAD WILL HAPPEN IF LEFT LIKE THAT

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You can Go with what you have
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Posted on Jan 16, 2009

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1 Answer

Midland 77-118. Three wires coming out of unit red,black,and orange. What is the orange for? Also need manual.


Its like the wiring in your house. That little three prong plug. There are three wires, one black,one white, and one green. The green is a ground wire , the black is neg flow and the white is positive flow. Well the red wire is hot ,the yellow wire is neg flow,and the black is ground. Some times the yellow wire isn't even connected. Look inside your radio and you will only see a red and black wire???you will have to google the radio model as such ( 77-118 owners manual)

Sep 01, 2015 | Midland CB Radios

1 Answer

I don't know how I copied and pasted so much sorry about that. But my question is I have orange and red wires with fuses and black wire without do I hook both red and orange to hot and black to ground?


it depends on what radio if you have a cobra 18wx style or maxon's, or a radioshack type the red is constant power 12v, orange is a switched 12v.. IE key like a stereo, and black is ground. if you have a 25 or 29 ltd types or exports they only have 2 wires red 12v and black ground. but you do find some power cords that have all three, and the orange on the 25 / exports are not used.

Feb 09, 2011 | Cobra 25 WX-NW-ST 40-Channels Base CB...

1 Answer

I have a red orange and black wire i need to know what the orange wire is


hello, in my Cobra 18 WX ST II the orange wire goes to "mic2" on the circuit board the other end runs to pin # 2 on the mic jack

May 21, 2010 | Cobra 18 WX ST II 40-Channels Base CB...

1 Answer

Wiring


From your owner's manual (Page 3):
http://www.cobra.com/downloads/manuals/18WXSTII_MANL1.pdf

The RED wire goes to the fuse panel (+12V)

The ORANGE wire goes to the battery for memory
(I STRONGLY suggest an inline fuse here of 2A)

The BLACK wire is vehicle ground.

Hope this helps you out.
Good Luck!

May 07, 2010 | Cobra 18 WX ST II 40-Channels Base CB...

1 Answer

On a Maxon MCB-30 cb radio, there are three wires. Red, Black and Orange. Red and black are the power and ground, but whats the point of the orange wire and what do you connect it to?


Hello stud

The orange wire is for memory retention for the last channel you were on if the red wire loses power as in switched on and off with the car ignition just hook up the orange to a 12 volt source that is on all the time. By the way those are some neat little radios wish I had one.

Ray

May 05, 2010 | Maxon MCB-30 40-Channels Base CB Radio

1 Answer

Where do the 3 wires in back of my Cobra18wxst11 go? Can I use a cigarette lighter plug?


From www.Cobra.com


"Where do I connect the three power wires? (radios with 3 power leads)
Answer: Connect the black wire to chassis ground.

Connect the red wire to a switched +12 volt source, such as the fuse for the AM/FM radio.

The orange wire is for the memory retention of your CB radio, and should be connected to a constant +12 volt source. The fuse for the brake lights is usually a good choice.

With the radio wired as above, the radio will turn off when the ignition is turned off. The orange wire will provide power to the radio so that it remembers the channel.

If you are installing your Cobra CB radio in an application where you wish to utilize a cigarette plug to power the unit, connect the black wire to the negative lead (side terminal) on the plug. Connect both the red and orange wires together to the positive lead (center tip) of the plug. Your unit will function properly this way but will not retain the channel memory. When power is applied your radio will come up on channel 9."

Oct 23, 2009 | Cobra 18 WX ST 40-Channels Base CB Radio

1 Answer

COBRA 18 ULTRA


The red wire is the power wire which can be wired to your fuse box to turn the radio off buy your key.The orange wire is a memory back up which must be wire to a constant 12 volts(this will keep the radio on the same channel when you shut the car off) The black wire is ground.

Mar 17, 2009 | Cobra CB Radios

2 Answers

Wiring


Twist red and orange together and hook to power then put the black to ground

Nov 17, 2007 | Maxon MCB-30 40-Channels Base CB Radio

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