CB Power Wiring

Gen X Jul 24, 2018

  1. Gen X

    Gen X Bought an X Supporting Member

    Messages:
    70
    Location:
    Ashburn, VA
    I just picked up a CB and want to temp power with a cigarette lighter adapter until I permanently install it. I have an old adapter from a random old piece of gear. I connected it to the CB and tried it out, but no power. CB is Uniden PRO505XL. Do I need a specific adapter for power? Does this not work with any old regular adapter?
     
  2. harryron

    harryron Suspension Lift Supporting Member

    Messages:
    4,769
    Location:
    ohio
    I ran a the positive with to the fuse box and grounded it somewhere in that location also.
     
  3. harryron

    harryron Suspension Lift Supporting Member

    Messages:
    4,769
    Location:
    ohio
    I used the fuse for the blower for the power source.
    20180724_205951_crop_604x604.jpg
     
  4. Gen X

    Gen X Bought an X Supporting Member

    Messages:
    70
    Location:
    Ashburn, VA
    I'll eventually do something like that when I permanently install everything. Right now I want to be able to take the whole unit out of the truck when not in use offroad. Was hoping the lighter option would make that possible.
     
  5. Nissan3161

    Nissan3161 Bought an X

    Messages:
    85
    Location:
    Ohio
    I got power from the lighter but it is no longer usable. I unplugged it and put spade terminals on the cb wiring and plugged them into the lighter connector. If I ever wanted to reverse it unjust have to unplug the cb and plug the lighter back in
     
  6. Prime

    Prime Some Kind of In Charge? Admin

    Messages:
    33,781
    Location:
    Suffolk, VA
    Why? Motors tend to induce a voltage hum into the power. You should never pull power from a motor circuit for something that produces audio.

    Also, best is to run a dedicated circuit to the battery. You can ground on any piece of metal, but CBs are notorious for picking up engine rev hum. Which is why you should ground to the battery for best audio quality.
     
  7. harryron

    harryron Suspension Lift Supporting Member

    Messages:
    4,769
    Location:
    ohio
    I'm not having any problems with a hum coming through my radio. I do agree I do need to get it on a dedicated circuit. I will most likely do it when I get around to moving the radio to a better location.
     

Share This Page