2015 Nissan Altima Alarm/Remote Start/Stereo Wiring 2015 nissan altima (smart key) - north america directwire vehicle information all products item wire color polarity wire location 12 volts white (40a) + bcm behind instrument cluster, white 15 pin plug, pin 11 second 12 volts green (40a) + dash fuse box, rear, white 1 pin plug, pin 1 starter brown - bcm behind instrument cluster, black 40 pin …