The Frontier is a pickup truck manufactured by Nissan. Although it debuted in 1998, it's been through only two generations of redesign. The factory-installed stereo system, unfortunately, was never included in a list of upgrades from the first to second generation. While the sound and amplification of the factory stereo is adequate, it does not offer the same quality that aftermarket components can offer. If you would like to upgrade your factory stereo, you'll need to know how to remove it first.
Disconnect the cable running to the negative battery terminal by loosening the nut on the cable clamp and pulling the cable off the negative terminal.
Remove the two screws above the radio opening with the Philips head screwdriver.
Pull the radio trim panel off. You may need to wedge a flat tip screwdriver under the trim and pry up on it to remove the trim. Use a clean rag to protect the trim from being accidentally scratched while prying up on the trim.
Remove the four screws holding the radio in place using a Philips head screwdriver and pull the radio out.
Disconnect the radio antenna in the back of the stereo and unplug the electrical plugs running to the back of the stereo.
