Pioneer GM-X354 Owner's Manual page 11

Two-channel mode (Stereo)
Input Select Switch
Slide this switch to the left.
Speaker input
terminal A
Speaker input
connector
Two-channel mode (Mono)
Input Select Switch
Slide this switch to the left.
Speaker input
terminal A
Speaker input
connector
Speaker (Left)
+ ≠
≠ +
Speaker (Right)
Speaker (Mono)
+ ≠
≠ +
Speaker (Mono)
Speaker output
terminal
Speaker output
terminal
10