If you’re having trouble installing an amp on your own, talk to an audio electrician for assistance. You can find the supplies you’ll need at an auto parts store.

These wires may be different colors, depending on the manufacturer. If your stereo is in the front of the car, you can run the wires along the floor, or near the bottom of the car doors. These leads connect your car’s stereo/receiver to your amp.

These 2 small and thin wires are surrounded with black insulation. Car speakers and amps rely on negative and positive terminals, or power sources, to produce sound.

You’ll need to remove the outer black insulation as well as the plastic coating on the 2 inner wires. The red goes with the positive terminal, while the black wire goes with the negative.

The base of the heat shrink tubing fits over both wires before splitting and covering each individual wire. If you’re unsure about how to use heat shrink tubing, ask a professional for help. Don’t touch or handle the tip of the heat gun when it’s turned on, or you could burn yourself.

You’ll need to do this at least 8 times, so there’s a terminal on the end of each exposed wire. If you aren’t experienced in soldering, try practicing with some scrap wire beforehand. Check online or in a hardware store to see if you can buy wires with the terminals already attached.

Check the back of the amp for plus and minus signs, which correspond to the different terminals. Some speaker systems may be arranged differently, depending on the car you have. Keep track of which speakers the wires correspond to. For instance, 1 terminal will power the right front speaker, while another may power the left.

You can also use small strips of electrical tape to help secure the wire to your speakers.

If you’re having trouble figuring out your speaker settings, check the user manual for help.

You can use wires with clips or terminals for this. Wires with clips can be purchased online, while terminal connectors need to be soldered manually.

This harness wire may look like 2 thin wires twisted together.

Double-check your amp’s user manual if you can’t find the jack.

If your wire is black and white, plug the white end into the positive terminal.