Sony XAV-A1 Installation/Connections Manual page 8

Notes on speaker connection
• Before connecting the speakers, turn the unit off.
• Use speakers with an impedance of 4 to 8 ohms, and with adequate power handling capacities to avoid
its damage.
• Do not connect the speaker terminals to the car chassis, or connect the terminals of the right speakers
with those of the left speaker.
• Do not connect the ground lead of this unit to the negative E terminal of the speaker.
• Do not attempt to connect the speakers in parallel.
• Connect only passive speakers. Connecting active speakers (with built-in amplifiers) to the speaker
terminals may damage the unit.
• To avoid a malfunction, do not use the built-in speaker wires installed in your car if the unit shares a
common negative E lead for the right and left speakers.
• Do not connect the unit's speaker cords to each other.
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