Power Supply And Ground

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

Power is supplied at all times

through 20A fuse (No. 31, located in fuse and fusible link box)
to audio unit terminal 6
through 15A fuse [No. 19, located in fuse block (J/B)]
to display unit terminal 1 (with monochrome display unit) or display control unit terminal 1 (with color display unit and
to AV switch terminal 1.

When ignition switch is in ACC or ON position, power is supplied

through 10A fuse [No. 4, located in fuse block (J/B)]
to display unit terminal 2 (with monochrome display unit) or display control unit terminal 10 (with color display unit and
to AV switch terminal 2.

When ignition switch is in ON or START position, power is supplied

through 10A fuse [No. 12, located in fuse block (J/B)]
to display unit terminal 3 (with monochrome display unit) or display control unit terminal 12 (with color display unit).

Ground is supplied

to display unit terminal 6 (with monochrome display unit) or display unit terminal 1 (with color display unit)
to display control unit terminal 3 (with color display unit) and
to AV switch terminal 5
through body grounds M57, M61 and M79.