Wiring connection
KD-A645 / KD-R640
Front output
Rear/subwoofer output
Vehicle dashboard
Factory wiring harness
(vehicle)
Recommended
connection
Blue: To power antenna
Blue/white: To amplifier
Vehicle-specific Wiring Harness
(separately purchased)
Signal cord (not supplied)
KD-R540 / KD-R440
Rear/subwoofer output
Rear ground terminal
Antenna terminal
Light blue/yellow
To the steering wheel
STEERING
remote control adapter
KD-A645 only
WHEEL
REMOTE
Join the same color wires together.
Blue/white: Remote (200 mA max.)
Orange/white: Illumination
Brown: Tel muting
Yellow: Battery 12 V
Red: Ignition 12 V
Black: Ground
White: Front speaker (left)
White/black
Gray: Front speaker (right)
Gray/black
Green: Rear speaker (left)
Green/black
Purple: Rear speaker (right)
Purple/black
For more information:
Metra Electronics: www.metraonline.com
Scosche Industries: www.scosche.com
JVC Amplifier
(➜ 8)
Fuse (10 A)
Remote wire
(not supplied)
Ignition switch
Car fuse block
Separate red wire
Make this connection if
your vehicle factory wiring
harness does not have "12 V
ignition switch" wire.
15
Part list for installation
A Faceplate
( ×1 )
B Mounting sleeve
( ×1 )
C Trim plate
( ×1 )
D Wiring harness
( ×1 )
E Extraction key
( ×2 )
ENGLISH