The 2006 Altima uses standard aftermarket coloring. However, the dash tweeters are wired in parallel with the front door speakers. If your aftermarket tweeters sound harsh, install a bass blocker (capacitor) on the positive wire.
For a , the radio wiring configuration depends on whether your vehicle is equipped with the standard audio system or the premium Bose® sound system. Standard Power and Ground Wires 2006 Nissan Altima Radio Wiring Diagram
allow these older analog signals to speak to new digital touchscreens. Troubleshooting: The 2006 Altima uses standard aftermarket coloring