Physical Values

Terminal (Wire color)		Description		Condition		Reference value (Approx.)
+	-	Signal name	Input/Output	Condition		Reference value (Approx.)
1 (L)	2 (W)	Sound signal front LH	Output	Ignition switch ON	Sound output
4 (V)	3 (LG)	Sound signal front RH	Output	Ignition switch ON	Sound output
5 (G)	6 (R)	Sound signal door woofer RH	Output	Ignition switch ON	Sound output
7 (B)	Ground	Ground	-	Ignition switch ON	-	0 V
10 (Y)	Ground	Battery power supply	Input	Ignition switch OFF	-	Battery voltage
11 (GR)	Ground	Battery power supply	Input	Ignition switch OFF	-	Battery voltage
12 (B)	Ground	Ground	-	Ignition switch ON	-	0 V
14 (B)	9 (W)	Sound signal door woofer LH	Output	Ignition switch ON	Sound output
16 (SB)	17 (V)	Sound signal rear woofer	Output	Ignition switch ON	Sound output
18 (LG)	19 (Y)	Sound signal rear LH	Output	Ignition switch ON	Sound output
20 (W)	Ground	Amplifier ON signal	Input	Ignition switch ACC	-	10.0 V
21	-	Shield	-	-	-	-
22 (GR)	Ground	Woofer Amplifier ON signal	Output	Ignition switch ACC	-	10.0 V
24 (V)	23 (SB)	Sound signal rear LH	Input	Ignition switch ON	Sound output
26 (BR)	25 (Y)	Sound signal rear RH	Input	Ignition switch ON	Sound output
29 (L)	30 (BG)	Sound signal center speaker	Output	Ignition switch ON	Sound output
31 (L)	32 (P)	Sound signal rear speaker RH	Output	Ignition switch ON	Sound output
33 (R)	34 (G)	Sound signal front RH	Input	Ignition switch ON	Sound output
35 (P)	36 (L)	Sound signal front LH	Input	Ignition switch ON	Sound output
37 (SB)	Ground	Mode change signal	Input	Ignition switch ON	Driver's Audio Stage ON	0 V
37 (SB)	Ground	Mode change signal	Input	Ignition switch ON	Driver's Audio Stage OFF	8.5 V