MEX-N4100BE, MEX-N4100BT, MEX-N4150BT - Sony Car Audio Service Manual (repair manual). Page 17

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MEX-N4100BE/N4100BT/N4150BT
17
(AEP and UK models)
Cautions
ˎ Run all ground (earth) leads to a common 
ground (earth) point.
ˎ Do not get the leads trapped under a screw, or 
caught in moving parts (e.g., seat railing).
ˎ Before making connections, turn the car ignition 
off to avoid short circuits.
ˎ Connect the power supply lead ʘ to the unit and 
speakers before connecting it to the auxiliary 
power connector.
ˎ Be sure to insulate any loose unconnected leads 
with electrical tape for safety.
ˎ Choose the installation location carefully so that 
the unit will not interfere with normal driving 
operations.
ˎ Avoid installing the unit in areas subject to dust, 
dirt, excessive vibration, or high temperature, 
such as in direct sunlight or near heater ducts.
ˎ Use only the supplied mounting hardware for a 
safe and secure installation.
Note on the power supply lead (yellow)
When connecting this unit in combination with other 
stereo components, the amperage rating of the car 
circuit to which the unit is connected must be higher 
than the sum of each component’s fuse amperage 
rating.
Mounting angle adjustment
Adjust the mounting angle to less than 45°.
Connection/Installation
Precautions
Connection 
(For MEX-N4100BT)
*1 Not supplied
*2 Speaker impedance: 4 – 8 Ω × 4
*3 RCA pin cord (not supplied)
*4 Depending on the type of car, use an adaptor for a 
wired remote control (not supplied).
*5 Whether in use or not, route the microphone input 
cord such that it does not interfere with driving 
operations. Secure the cord with a clamp, etc., if it is 
installed around your feet. 
*6 Depending on the type of car, use an adaptor (not 
supplied) if the antenna connector does not fit.
*7 AUDIO OUT can be switched to SUB or REAR.
ͫ
from a wired remote control 
(not supplied)*
4
from a car antenna 
(aerial)*
6
*
3
*
3
Subwoofer*
1
Power amplifier*
1
For details, see “Making 
connections” (page 31).
Microphone 
XA-MC10 *
1
*
5
*
2
See “Power connection diagram” (page 31) 
for details.
*
7
Subwoofer Easy Connection
You can use a subwoofer without a power amplifier 
when it is connected to a rear speaker cord.
Notes
ˎ Preparation of the rear speaker cords is required.
Front speaker
Subwoofer
If you have a power antenna (aerial) without a relay 
box, connecting this unit with the supplied power 
supply lead 
ʘ may damage the antenna (aerial).
ɞ To the car’s speaker connector
ɟ To the car’s power connector
Making connections
1
Rear speaker 
(right)
È Purple
2
¾ Purple/black 
striped
3
Front speaker 
(right)
È Gray
4
¾ Gray/black striped
5
Front speaker 
(left)
È White
6
¾ White/black 
striped
7
Rear speaker 
(left)
È Green
8
¾ Green/black 
striped
ˎ Use a subwoofer with an impedance of 4 to 8 ohms, 
and with adequate power handling capacities to 
avoid damage.
Memory hold connection
When the yellow power supply lead is connected, 
power will always be supplied to the memory 
circuit even when the ignition switch is turned off.
Speaker connection
ˎ Before connecting the speakers, turn the unit off.
ˎ Use speakers with an impedance of 4 to 8 ohms, 
and with adequate power handling capacities to 
avoid damage.
Make sure your car’s auxiliary power connector, and 
match the connections of cords correctly 
depending on the car.
Power connection diagram
Auxiliary power connector
Common connection
When the positions of the red and yellow 
leads are inverted
12
continuous power 
supply
Yellow
15 switched power supply
Red
12
switched power supply  Yellow
15
continuous power 
supply
Red
Red
Red
Yellow
Yellow
Red
Red
Yellow
Yellow
When the car without ACC position
After matching the connections and switching 
power supply leads correctly, connect the unit to 
the car’s power supply. If you have any questions 
and problems connecting your unit that are not 
covered in this manual, consult the car dealer.
Red
Red
Yellow
Yellow
12
continuous power 
supply
Yellow
13
power antenna (aerial) /
power amplifier control 
(REM OUT)
Blue/white striped
15 switched power supply
Red
16 ground (earth)
Black
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