MS 4150 RS MP3 Connector Overview

ISO chamber A:

Pin

Connection

A1

Input digital speedometer signal / SDVC / GALA

A2

Switch input reversing signal (reversing light plus)

A3

Switch input telephone mute function

A4

+ 12 V permanent positive; terminal 30

A5

Switch output for electronic antenna /relay motor antenna

A6

Switch input pilot light

A7

+12 V ignition positive / ACC; terminal 15 (without switch-off on starting engine)

A8

Battery negative; terminal 31
ISO chamber B (loudspeakers):

Pin

Connection to loudspeaker

B1

+ Rear right (RR+)

B2

– Rear right (RR-)

B3

+ Front right (FR+)

B4

– Front right (FR-)

B5

+ Front left (FL+)

B6

– Front left (FL-)

B7

+ Rear left (RL+)

B8

– Rear left (RL-)

C

B

A

C1

1 4

3 6

2 5

1

2

1

2

C2

C3

7

10

13

16

19

9

12

15

 

18

8

11

14

17

20

3

5

7

 

 

4

6

8

 

Fuse

3

5

7

 

 

 

4

6

8

 

 

ISO chamber C:

 

Plug C1 / line outPlug C2 / telephonePlug C3 / CD changer

Pin

Connection

Pin

Connection

Pin

Connection

C1

Rear left

C7

D2B –C13CD UART +

C2

Rear right

C8

Telephone inC14CD UART –

C3

Ground

C9

Telephone Ref.C15CD UART GND

C4

Front leftC10D2B +C16+ 12 V permanent

C5

Front rightC11RC3 –C17+ 12 V Switch output

C6

+ 12 V Switch output

C12RC3 +C18SPDIF Line

 

 

 

 

C19SPDIF GND

 

 

 

 

C20

SPDIF GND