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Problems when installing CB...

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MudPlugger:
I've just finished fitting my CB after finding a spot in which I like, I've mounted it to the rear of the courtesy light on the plastic as I wanted to put it in a spot where it is visible and accessible from both sides.

Because I have mounted it there I have taken a feed from the courtesy light for the power source, now I have problems. Basically when I connected the cb up it blew the fuse checked the CB radio fuse and it was popped so I replaced it along with the interior light fuse plugged CB in again and yet again it went pop.

So I've replaced the interior light fuse witha 10A one. the interior light no longer goes pop...but I have no power to the CB, any ideas as to what it could be?

piper5:
depending on the cb it will have an inline fuse or possibly an internal fuse, again depending on the rig they can draw from 10amp to 25 for a modded one with ssb. it really should have its own supply and good practice is to fuse the ground wire as well which helps against reverse polarity in the wires

Disco Matt:
Having seen the wiring for the interior light I really wouldn't risk adding a CB to the load on it! Putting an uprated fuse in is not a good idea as it can cause the wire to melt, short, and/or catch fire before the fuse blows.

Do you have an electric sunroof? If not, you will probably still have the wiring harness in place for it which can be tapped into for the CB. I installed a new live feed and used the sunroof earth.

Mine is fed by the same fuse as the radio aerial motor. I've not altered the fuse at all and it has yet to blow.

thermidorthelobster:
If the CB is popping BOTH fuses you need to work out what's wrong with it.  If the CB fuse is gone, then the interior light fuse won't go again because the CB is not drawing current from it.  If you then get the CB working again, and you've put a bigger fuse on the interior lights, then you may blow your interior lights wiring.

Once the CB's working, why not just run a fused +/- cable up the A post and above the head lining?

lee celtic:
I made a steel mount a work so I could mount the rig in the middle of the dash . Looks good too :cool:

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