1990 Nissan 240sx radio wiring diagram Source Source Source Source Source Source Source Source Source Source Read Also: 1989 Nissan 240sx radio wiring diagram 1990 Nissan 240sx stereo wiring diagram 1992 Nissan 240sx radio wiring diagram 1991 Nissan 240sx radio wiring diagram 89 Nissan 240sx radio wiring diagram 92 Nissan 240sx radio wiring diagram