Soldering wires

Discussion in 'The Projects Forum' started by ikwtif, Oct 10, 2014.

  1. ikwtif

    Thread Starter New Member

    Oct 10, 2014

    I hope I am posting this in the right section, and I am sorry for the probably obvious basic question for you guys. But I pulled the wires from my car transmitter and I wanted to solder them back on, the problem is, I am not sure what wire goes where. It would be great if someone would help me, or point me in the direction of where I can figure out how to know wich one goes where (or preferably both).


    I'm guessing the white wire goes to GND (ground). But besides that I'm pretty clueless

    Thanks in advance
  2. wayneh


    Sep 9, 2010
    Car transmitter? You mean, a built-in garage door opener?

    Anyway, I'd find the forum for your year and model of vehicle. The denizens there will know for sure. Otherwise, a photo and more detail would help.
  3. ikwtif

    Thread Starter New Member

    Oct 10, 2014
    I mean a regular car fm transmitter you can plug into any car's lighter socket, and atach a cellphone/mp3 player to so you can transmit to a frequency and pick it up with the radio.

    It's the cables that was attached to the part you have to put into the lighter socket, so I'm assuming it's fairly universal.

    I had provided a link in the OP to some pictures where I opened it and show the circuit board with the soldering points/wires.
  4. DerStrom8

    Well-Known Member

    Feb 20, 2011
    In a DC system black is ground, red is V+, and white is probably a signal of some sort.
  5. KJ6EAD

    Senior Member

    Apr 30, 2011
    Yes, and it may be the antenna. If so, it will only be connected at one end to the circuit board and the other end will be left unconnected in the cable sheath.