Physical Values

Terminal

(wire color)

Item

Signal input/output

Condition

Reference value

(Approx.)

+

-

1

(Y)

Ground

Battery

Input

-

-

Battery voltage

2

(W)

18

(B)

Subwoofer

Output

Ignition switch ON

Receive audio signal

3

(BR/W)

19

(BR)

Subwoofer

Output

Ignition switch ON

Receive audio signal

4

(B)

Ground

Ground

-

Ignition switch ON

-

-

9

(G/W)

Ground

Amp. ON signal

Input

Ignition switch ON

-

More than 6.5V

10

(L/W)

26

(L/B)

Center speaker

Output

Ignition switch ON

Receive audio signal

11

(SB)

27

(B/Y)

Rear door speaker LH and rear door tweeter LH

Output

Ignition switch ON

Receive audio signal

12

(O/L)

28

(R/L)

Rear door speaker RH and rear door tweeter RH

Output

Ignition switch ON

Receive audio signal

13

(W/B)

29

(L/B)

Front tweeter RH and front pillar speaker RH

Output

Ignition switch ON

Receive audio signal

14

(L/W)

30

(L/R)

Front tweeter LH and front pillar speaker LH

Output

Ignition switch ON

Receive audio signal

15

(L/W)

31

(L/R)

Front door speaker LH

Output

Ignition switch ON

Receive audio signal

16

(W/B)

32

(L/B)

Front door speaker RH

Output

Ignition switch ON

Receive audio signal

17

(Y/LG)

Ground

Battery

Input

-

-

Battery voltage

20

(B)

Ground

Ground

-

Ignition switch ON

-

-

21

(B)

5

(Y)

Audio sound signal front RH

Input

Ignition switch ON

Receive audio signal

22

(L)

6

(W)

Audio sound signal front LH

Input

Ignition switch ON

Receive audio signal

23

(B/W)

7

(P)

Audio sound signal rear RH

Input

Ignition switch ON

Receive audio signal

24

(L)

8

(BR)

Audio sound signal rear LH

Input

Ignition switch ON

Receive audio signal