Sony DSX-A400BT Operating Instructions Manual page 30

Power connection diagram
Make sure your car's auxiliary power connector, and
match the connections of cords correctly
depending on the car.
Auxiliary power connector
Common connection
Red
Yellow
continuous power
12
supply
15 switched power supply
When the positions of the red and yellow
leads are inverted
Red
Yellow
12 switched power supply
continuous power
15
supply
30
GB
Red
Yellow
Yellow
Red
Red
Yellow
Yellow
Red
When the car without ACC position
Red
Yellow
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
Yellow