* Subwoofer
* Amplifier
* Wiring kit
* RCA cables
* Speaker wire
* Drill
* Screwdriver
* Pliers
* Wire strippers
* Crimpers
1. Disconnect the negative terminal of the car battery.
2. Locate the stock radio in the center console of the vehicle.
3. Remove the screws that hold the stock radio in place and remove the radio from the dashboard.
4. Connect the RCA cables from the amplifier to the RCA outputs on the back of the stock radio.
5. Connect the speaker wire from the amplifier to the speaker terminals on the back of the subwoofer.
6. Connect the power wire from the amplifier to the positive terminal of the car battery.
7. Connect the ground wire from the amplifier to the chassis of the vehicle.
8. Turn on the stock radio and amplifier and adjust the settings as desired.
Here are some additional tips for installing a subwoofer and amplifier to the stock radio in a 2002 Nissan Pathfinder:
* Make sure that the subwoofer and amplifier are compatible with each other.
* Use high-quality wiring and RCA cables to ensure the best possible sound quality.
* Be careful not to damage the stock radio or the wiring when making the connections.
* If you are not comfortable with electrical work, it is best to have the subwoofer and amplifier installed by a professional.