wireing a cb radio...

morbidsanity

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hey so i am new to wireing on cars kinda,i bought a uniden pro520xl it has a hot with an inline fuse and a ground, where can i get power? pictures are awesome...
 
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hey so i am new to wireing on cars kinda,i bought a uniden pro520xl it has a hot with an inline fuse and a ground, where can i get power? pictures are awesome...

I wired mine straight to the battery. You can also buy a mini add-a-fuse and power it through your accessory fuse box.
 
I wired mine straight to the battery. You can also buy a mini add-a-fuse and power it through your accessory fuse box.

yeah i researched the fuse thing and something to the fact that you pull a fuse and pinch the hot under the fuse and steal power that way,im not very good with electrical and dont want to take power from something too strong, is this even advisable?
 
yeah i researched the fuse thing and something to the fact that you pull a fuse and pinch the hot under the fuse and steal power that way,im not very good with electrical and dont want to take power from something too strong, is this even advisable?

No, you just go to autozone or the like and buy a "mini add-a-fuse". Pull a fuse out of the accessory fuse box, plug in the add-a-fuse, plug the fuse you pulled into the add-a-fuse and put the cb power wire in. Simple.

add-a-circuit.jpg
 
if you go straight from the batt with pos and neg you will get less static and better signal. im just now finding that out with mine. be sure you put it on a really good ground.
 
Here's how I did mine. I have an inline fuse going to an accessory box, and the cb radio get's power from there. I just finished re-doing it and my advice is to skip any relay, switch...any of the unnecessary crap that I put in mine. The fuse is 100amps which is slightly less than the max the fuse block can take and then all of the accessories are fused from the block.

http://www.toyota-4runner.org/3rd-gen-t4rs/142942-accesory-fuse-box-install.html
 
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Your power and ground should be from the battery. It will have the best performance that way with the least amount of noise. The more grounding the better with CB radios.
 
I personally haven't heard that. I'm by no means a professional at electronics. I have my radios (although much more powerful than cb) wired directly to the battery. I have fuses on both the negative and positive. Even my manuals say to wire it like that.
 
yes you want the best ground path to the battery. The best grounding point relies entirely on resistance. If you're trying to ground something that has to go through a body mount, through the chassis and through the frame to the battery, you bet a long wire straight to the negative post is better. Especially if you have a poor chassis ground.

Generally though, you should be able to ground with very little resistance (around 5 ohms) between your ground of choice and the negative terminal... so a short wire is prefered.

With that in mind though, you can create electrical interference (noise) in your equipment if you have other electronics operating on the same grounding plane IE through the body. Going straight to the battery bypasses that.
 

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