Factory radio and navigation connector drawings. Match the radio model and socket keying before using an assignment. Letter and signal labels are retained where the reference identifies the contacts by label.
25 / 45 / 75 · Blaupunkt CD43
Connector overview
X2001 · 17-position main connectorISO adapter A · supply and controlISO adapter B · speaker outputs
X2001 · 17-position main connector
Pin / label
Function
1
Front left +
2
Front right +
3
Rear left +
4
Telephone mute
5
Switched +12 V (ACC)
6
Rear right +
7
K-bus
8
Front left −
9
Constant +12 V
10
Speed pulse
11
Front right −
12
Rear left −
13
Illumination
14
Rear right −
15
Ground
16
Powered antenna output
ISO adapter A · supply and control
Pin / label
Function
4
Battery +12 V · X2001 pin 9
5
Antenna output · X2001 pin 16
6
Illumination · X2001 pin 13
7
ACC · X2001 pin 5
8
Ground · X2001 pin 15
ISO adapter B · speaker outputs
Pin / label
Function
1
Rear right +
2
Rear right −
3
Front right +
4
Front right −
5
Front left +
6
Front left −
7
Rear left +
8
Rear left −
75 · navigation receiver
Connector overview
1 · power and controlB · speaker outputs3 · multimedia and steering controls
