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Home >> Scion >> 2004 >> xA Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1848 (Audio, Visual, Navigation & Telephone System (Coupe)) >> Audio >> System Description >> BOSE System
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BOSE System

WARNING: This page is about a different car, the 2006 Infiniti G35. 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

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

Ground is supplied through the case of the audio unit.

Ground is also supplied

Audio unit and 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 pressed to audio switch, it sends audio signal to audio unit.

Then, audio signals are supplied

Audio signals are amplified by the BOSE speaker amp.

The amplified audio signals are supplied

Without Telephone System

When one of steering wheel audio control switches is pressed to volume up seek up or mode ON, the resistance in steering wheel audio control switch circuit changes depending on which button is pressed. This will change the output voltage.

Power is supplied

Ground is supplied

When one of steering wheel audio control switches is pressed to volume down, seek down or power ON, the resistance in steering wheel audio control switch circuit changes depending on which button is pressed. This will change the output voltage.

Power is supplied

Ground is supplied

With Telephone System

When one of steering wheel audio control switches is pressed to volume up, seek up or PTT ON, the resistance in steering wheel audio control switch circuit changes depending on which button is pressed. This will change the output voltage.

Power is supplied

Ground is supplied

When one of steering wheel audio control switches is pressed to volume down, seek down or mode ON, the resistance in steering wheel audio control switch circuit changes depending on which button is pressed. This will change the output voltage.

Power is supplied

Ground is supplied