Pioneer GM-6400F Owner's Manual page 8

Section
03 Connecting the units
Four-channel output
1 Right
2 Left
3 Speaker out A
4 Speaker out B
Three-channel output
1 Right
2 Left
3 Speaker out A
4 Speaker out B (Mono)
8
En
Two-channel output (Stereo)
1 Speaker (Right)
2 Speaker (Left)
Two-channel output (Mono)
1 Speaker (Mono)