Base System

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Owner's Manual for audio system operating instructions.

Power is supplied at all times

Through 15A fuse (No. 32, located in the fuse and fusible link block)
To audio unit terminal 6
To A/C and AV switch terminal 1
To display unit terminal 1 and
To option connector-2 for satellite radio receiver terminal 12.

With the ignition switch in the ACC or ON position, power is supplied

Through 10A fuse [No. 6, located in the fuse block (J/B)]
To audio unit terminal 10
To A/C and AV switch terminal 2
To display unit terminal 2 and
To option connector-2 for satellite radio receiver terminal 11.

Ground is supplied through the case of the audio unit.

Ground is also supplied

To A/C and AV switch terminal 5 and
To display unit terminal 6 and 15
Through body ground M35, M45 and M85,
To option connector-2 for satellite radio receiver terminal 10
Through body ground B203 and B210.

Audio unit, A/C and audio controller are connected by FPC (Flexible Print Circuit).

A/C and audio controller integrates A/C switches and audio switches.

When A/C and audio controller is pushed to audio switch, it sends audio signal to audio unit. Then audio signals are supplied

Through audio unit terminals 1, 2, 3, 4, 13, 14, 15, and 16
To terminals 1 and 2 of front door speaker LH and RH
To terminals 1 and 2 of rear door speaker LH and RH and
To terminals 1 and 2 of instrument speaker LH and RH.

When one of audio steering wheel switch is pushed to volume up, seek up, or mode ON, resistance in steering switch circuit changes depending on which button is pushed.

When one of audio steering wheel switch is pushed to volume down, seek down, or power ON, resistance in audio steering wheel switch circuit changes depending on which button is pushed.