How To Install 4 Ohm Car Speakers

In the world of car audio, an impedance rating of 4 ohms is the standard for car speakers. Impedance is a measure of electrical resistance, and car audio gear like receivers and amplifiers are designed to operate properly with speakers that have a 4-ohm rating. Installing new car speakers is a highly effective way of improving the sound of your car's audio system.

Difficulty: Moderate

Instructions

Things You'll Need:

• car speakers
• screwdrivers
• socket set/ratchet
• wire cutters/strippers
• panel tool

1. Remove the panels or grilles to get access to the old speakers. The exact method for doing this will vary from vehicle to vehicle. However, with most cars you must remove the door panel to access door speakers.

2. Remove any screws on the door panel, and then use a panel tool to pry the door away from its retaining clips. Work carefully if you do not have specific instructions for your car. Most rear deck speakers are accessed through the trunk; remove the bolts or screws holding them in from underneath.

3. Take the old speakers out once you've accessed them. In most cases the speakers are secured in with screws or bolts. Choose the proper tool and remove them, disconnecting the speaker wires as you do so. In some cases the speakers are riveted into position. You'll need to drill out the rivets in this case.

4. Connect the speaker wires to your new speakers. Most factory speakers plug into the wiring with special connectors. Adapters are sometimes provided with the purchase of new speakers, but if they're not, cut off the plugs and crimp quick slide connectors onto the wires, the connect to the new speakers.

5. Mount the new speakers into the openings, securing them in place with the screws or bolts you removed.

6. Replace any panels or grilles you removed.

References

• Car Stereo Cookbook; Rumreich; 2005