
13
Different connections of the ISO plug on the radio
The layout of the pins on the ISO plug used in a car depends on the type of car. Before using the
switchbox, you should make sure that the connections are correct in order to prevent possible damage
to the device.
Configuration I
If the assignment of pin 7 of the ISO plug is connected to the DC Power Supply, and pin 4 is connected
to the ignition, you should check if the connection looks like the connection presented on the drawing
below.
Configuration II
If the assignment of pin 7 of the ISO plug is connected to the ignition, and pin 4 is connected to the
DC power supply, the connection of the cables should look like the connection presented on the draw-
ing below.
Switchbox
Vehicle
red
7 (red)
blue
4 (blue)
red
7 (red)
blue
4 (blue)
Switchbox
red
7 (red)
blue
4 (blue)
Switchbox
Vehicle
Vehicle