AUDIO AMPLIFIER CONSTRUCTION

id092000819300


Structural view

•  Positioned under the front seat (RH).
•  Converts music signals (analog voltage waveform) from the audio unit to digital signals, then amplifies and outputs them.
•  The audio amplifier is tuned according to the type of seat material used because the acoustic characteristics (sound reflection/absorption) differs depending on whether the material used in the seat is for a normal seat or a leather seat.
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Terminal Layout and Signal

Terminal

Signal
1A
AMP control (SW B+)
1B
Vehicle speed signal
1C
L.H.D.: Front door speaker input LH (-)
R.H.D.: Front door speaker input RH (-)
1D
L.H.D.: Front door speaker input LH (+)
R.H.D.: Front door speaker input RH (+)
1E
L.H.D.: Front door speaker input RH (-)
R.H.D.: Front door speaker input LH (-)
1F
L.H.D.: Front door speaker input RH (+)
R.H.D.: Front door speaker input LH (+)
1G
L.H.D.: Rear door speaker input LH (-)
R.H.D.: Rear door speaker input RH (-)
1H
L.H.D.: Rear door speaker input LH (+)
R.H.D.: Rear door speaker input RH (+)
1I
L.H.D.: Rear door speaker input RH (-)
R.H.D.: Rear door speaker input LH (-)
1J
L.H.D.: Rear door speaker input RH (+)
R.H.D.: Rear door speaker input LH (+)
1K
—
1L
AudioPilot®2
1M
—
1N
—
1O
AudioPilot® 2 microphone (+)
1P
AudioPilot® 2 microphone (-)
2A
—
2B
L.H.D.: Rear door speaker output LH (-)
R.H.D.: Rear door speaker output RH (-)
2C
—
2D
L.H.D.: Rear door speaker output LH (+)
R.H.D.: Rear door speaker output RH (+)
2E
Rear speaker output (+)
2F
—
2G
Rear speaker output (-)
2H
—
2I
Front center speaker output (+)
2J
Power ground (5HB)
2K
Front center speaker output (-)
2L
—
2M
L.H.D.: Rear door speaker output RH (+)
R.H.D.: Rear door speaker output LH (+)
2N
—
2O
L.H.D.: Rear door speaker output RH (-)
R.H.D.: Rear door speaker output LH (-)
2P
—
3A
B+
3B
Power ground
3C
L.H.D.: Front door speaker LH and tweeter LH output (-)
R.H.D.: Front door speaker RH and tweeter RH output (-)
3D
L.H.D.: Front door speaker LH and tweeter LH output (+)
R.H.D.: Front door speaker RH and tweeter RH output (+)
3E
L.H.D.: Front door speaker RH and tweeter RH output (-)
R.H.D.: Front door speaker LH and tweeter LH output (-)
3F
L.H.D.: Front door speaker RH and tweeter RH output (+)
R.H.D.: Front door speaker LH and tweeter LH output (+)
3G
Rear center speaker (4SD)/bass-box (5HB) output (-)
3H
Rear center speaker (4SD)/bass-box (5HB) output (+)