XM-S400D - Sony Car Audio Service Manual (repair manual). Page 4

Ɇ High level input connection

Set the INPUT SELECT switch to “2CH” with the 
speaker connection 

ǵ (page 9).

ʖ

Gray

Gray/Striped

White

White/Striped

Front right speaker output

Front left speaker output

Car audio

Set the REAR LPF switch and FRONT HPF switch to 
“ON” or “OFF” according to the speaker system.
Also, refer to the manual supplied with your 
speakers for further details.

Ǵ 4-speaker system

Set with the input connection 

Ƀ (page 7) or Ʌ 

(page 8).

ǵ 2-way system

Set with the input connection 

Ʉ (page 7) or Ɇ 

(page 8).

Note
In this system, the volume of the subwoofer will be 
controlled by the car audio unit fader control.

Speaker Connections

ʔ

White

White/Striped

Gray

Gray/Striped

Green

Green/Striped

Purple

Purple/Striped

Front speakers (min. 4 Ω)

Rear speakers (min. 4 Ω)

ʔ

White

White/Striped

Gray

Gray/Striped

Green

Green/Striped

Purple

Purple/Striped

Full range speakers (min. 4 Ω)

Subwoofers (min. 4 Ω)

or C.

or D.