- A CD
- Double check a couple things. First, make sure you have wired the car audio amplifier correctly. See if the power light turns on or if there is a standby light. That means there shouldn't be anything around with the wiring.
- Turn on the radio or put in a CD. If you want to test the car audio amplifier with a radio, tune to a radio station that plays music. If you're using a CD, just change the song selection to whatever song you want.
- Crank up the volume. Turn the volume up a bit to see if there is a difference in power and sound quality. However, don't turn the volume way too loud or you'll get complaints from your neighbors. If there is sound and you notice a difference in power and sound quality, you're good to go. If there is no sound difference or there's no sound at all, you know you have a problem. Below, we're going to troubleshoot the problems.
- Troubleshooting (if you have any problems). When you wire the amplifier to the car and you turn on the engine, a power light or standby light should light up. If it doesn't, you may have wired it to the car incorrectly. Either that or there is something wrong with the wires and the electronics. If the power or standby light lights up but there's no sound and power difference or there's no sound at all, there's an internal problem with the car amplifier. There's something wrong with the electronics of the actual amplifier, not the connecting wires. If this is the problem, you'll have to go out and buy a new amplifier or have someone repair it for you.
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