JBL MR-4.2 Operation Manua For Users - page 3
2
Wiring Identification
Installation Notes
This radio contains four separate power amplifiers. To prevent possible damage
to these amplifiers please ensure the following:
(Applicable to both 2 and 4 speaker connection)
i) The boat chassis is not used as a loudspeaker ground(-).
ii) Front and rear loudspeaker connecting wires are not joined together.
iii) Any wires not used when completing a two speaker installation are fully insulated.
Iv) The memory wire (yellow) is connected to a permanent + 12V supply.
v) The power wire (red) is connected via the ignition switch of the boat.
optional hard wired remote
connector
ANT. SOCKET
12P CONNECTOR
(AUTO ANT)
( BACK-UP B+ )
FUSE
1A
( GROUND )
FUSE
( IGNITION B+ )
BLUE
YELLOW
BLACK
RED
GRAY
GRAY/BLACK
VIOLET
VIOLET/BLACK
( FRONT RIGHT )
( REAR RIGHT )
GREEN
GREEN/BLACK
WHITE
WHITE/BLACK
( FRONT LEFT )
( REAR LEFT )
(LINE OUT)
RED
WHITE
Gray
10A
145x210mm
EST.JBL(MR4.2)-061129-I/B
(AUX IN)
RED
WHITE
Black