Pioneer PRS-D420 Owner's Manual page 12

Connecting the Unit
Two-channel (Stereo)
Input select switch is on
the top of the unit. Slide
this switch to the left.
From car stereo (RCA output)
Two-channel (Mono)
Input select switch is on
the top of the unit. Slide
this switch to the left.
From car stereo (RCA output)
11
RCA input jack A
In the case of two-channel mode
connect RCA plugs to the RCA
input jack A.
Connecting wire with
RCA plugs
(sold separately)
RCA input jack A
In the case of two-channel mode
connect RCA plugs to the RCA
input jack A.
Connecting wire with
RCA plugs
(sold separately)
Speaker (Right)
Speaker (Left)
Speaker (Mono)
Speaker (Mono)