How to Install Back Speakers in a Nissan Maxima

Nissan Maxima models come equipped with factory-installed stereo systems. However, many audio enthusiasts will replace components of the factory stereo, including the rear speakers, with high-performance aftermarket equipment. The back speakers are often one of the first sets of speakers that drivers change, since aftermarket speakers usually have improved bass response.
Difficulty: Moderate
Instructions
Things You'll Need
Phillips screwdrivers
Replacement speakers
Wire cutters/strippers/crimpers
Quick slide connectors
1

Open the trunk of the vehicle, and crawl in on your back so that you can see the underneath of the vehicle's rear deck. You'll see two speakers mounted underneath the rear deck.
2

Remove the four screws surrounding each of the speakers. These screws don't hold the speaker in, but instead secure the grille that covers each of the speakers on the inside of the car.
3

Go into the back seat of the car. Pull each of the grilles off the rear deck by lifting straight up from the speaker. This reveals each of the speakers.
4

Undo the screws holding the speakers into the rear deck, and then pull the speakers out of the rear deck. Each speaker will have a wiring plug clipped to it. Pull the wiring plugs out from the sockets on the factory speakers.
5

Cut off the wiring plugs on the factory speakers. Strip 1/2 inch of insulation off each lead so that you have 1/2 inch of bare wire on each lead. Crimp quick slide connectors that match the size of the new speaker's terminals onto each lead by sliding each connector onto the bare wire and then crimping the connector in place.
6

Slide the quick slide connectors onto the terminals of the new speakers, then place the speakers into the openings. Screw the new speakers into place with the screws you removed earlier.
7

Replace the grilles onto the speakers, and then go back into the trunk and secure the grilles.