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Connections
Caution
•This unit is designed for negative earth 12 V DC operation only.
•Be careful not to pinch any wires between a screw and the body of the car or this unit or between any
moving parts such as the seat railing, etc.
•Before making connections, disconnect the earth terminal of the car battery to avoid short circuits.
•Connect the yellow and red power input leads only after all other leads have been connected.
•Be sure to connect the red power input lead to the positive 12 V power terminal which is energized
when the ignition key is in the accessory position.
•Run all earth wires to a common earth point.
•Be sure to insulate any loose unconnected wires with electrical tape for safety.
Connection diagram
XR-1780
Front speakers
Rear speakers
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