Pioneer AVD-W6210 - Manual (Page 28)

Connection Diagram (26-pin input)
You can connect a separately sold Pioneer Navigation unit.
27
Connecting the System
Display Unit
Hide-away Unit
26-pin input
(yellow)
Yellow Black
Pioneer Navigation unit
(sold separately)
26-pin output (black)
26-pin cable (supplied with the Pioneer Navigation unit)
3 m
Brown