How Do I Test a Car Radio Speaker?

By Jennifer Moore

Installing car stereo speakers is not difficult, but before buying new speakers and doing a full installation, you should first test each of your old speakers. You may incorrectly assume that the speakers are at fault. If you take each speaker out and test it, then you will know whether you actually have a faulty speaker or some other type of problem in the car stereo system.

Things You'll Need

  • 6-inch to 10-inch piece of speaker wire
  • Wire strippers
  • 1 AA battery
  • Small wrench
  • Phillips screwdriver

Step 1

Loosen the negative terminal bolt from the car battery with the wrench. Remove the terminal. This is a safety precaution you should take when working with electrical wires in a car.

Step 2

Take the the speaker grill off by removing the screws with the Phillips screwdriver.

Step 3

Remove the speaker by unfastening the bolts that hold it in place with the wrench.

Step 4

Unplug the connection wires from the back of the speaker.

Step 5

Strip both ends of a small 6-inch to 10-inch piece of car speaker wire with a wire stripper.

Step 6

Connect one side of the wire to the speakers, as if you were connecting it in the car. Hold the other positive, red, end to the positive side of an AA battery, and the other negative, black, end to the negative side of the battery.

Step 7

Look for movement in the speaker, and listen for a popping noise. This sound and movement means the speaker is working. However if you don't see movement or hear noise, then the speaker is not working.

Step 8

If the speaker works reconnect it to the car speaker wires and re-bolt it in place. Test the other car speakers in the same manner. When finished replace the car battery's negative terminal.