If your autosound system has only two phono output jacks (left and right) and you are using only two speakers, simply connect them to the amplifier’s corresponding FRONT L and FRONT R, or REAR L and REAR R phono jacks.
High-Level Input Connections
If your stereo system has only speaker outputs, you can connect them to the am- plifier’s rear HIGH INPUT and front HIGH INPUT sockets using the floating ground connection or the common ground connection method.
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