Physical Values

Terminal (Wire color)		Description		Condition		Reference value (Approx.)
+	-	Signal name	Input/Output	Condition		Reference value (Approx.)
1 (Y)	10 (G)	Sound signal rear door speaker LH	Output	Ignition switch ON	Sound output.
2 (SB)	3 (V)	Sound signal rear door speaker RH	Output	Ignition switch ON	Sound output.
4 (B)	5 (P)	Sound signal front door speaker LH	Output	Ignition switch ON	Sound output.
6 (L)	7 (W)	Sound signal front squawker LH	Output	Ignition switch ON	Sound output.
8 (LG)	13 (Y)	Sound signal front door speaker RH	Output	Ignition switch ON	Sound output.
9 (G)	14 (R)	Sound signal woofer and rear squawker (LH and RH)	Output	Ignition switch ON	Sound output.
11 (GR)	Ground	Battery power supply	Input	Ignition switch OFF	-	Battery voltage
12 (B)	Ground	Ground	-	Ignition switch ON	-	0 V
15 (B)	28 (G)	Sound signal center speaker	Output	Ignition switch ON	Sound output.
17 (W)	Ground	Mode change signal	Input	Ignition switch ON	Driver's Audio Stage ON	0 V
17 (W)	Ground	Mode change signal	Input	Ignition switch ON	Driver's	Audio Stage OFF 8.5 V
18 (R)	32 (G)	Sound signal front LH	Input	Ignition switch ON	Sound output.
19 (P)	20 (L)	Sound signal front RH	Input	Ignition switch ON	Sound output.
21 (BR)	22 (Y)	Sound signal rear LH	Input	Ignition switch ON	Sound output.
23 (V)	33 (SB)	Sound signal rear RH	Input	Ignition switch ON	Sound output.
25 (GR)	Ground	Woofer amp. ON signal	Output	Ignition switch ACC	-	12.0 V
31 (W)	Ground	BOSE amp. ON signal	Input	Ignition switch ACC	-	12.0 V
37 (BR)	27 (R)	Sound signal front squawker RH	Output	Ignition switch ON	Sound output.