Power Amplifier

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Contents	Measuring condition	Standard
(R81) No. 1 ←→ Chassis ground	Backup power supply	Always	Battery voltage
(R81) No. 2	-	-	-
(R81) No. 3 ←→ Chassis ground	Ground	Always	0 V
(R81) No. 4	-	-	-
(R81) No. 5	-	-	-
(R81) No. 6	-	-	-
(R81) No. 7	-	-	-
(R81) No. 8	Woofer (+)	-	-
(R81) No. 9	RH side tweeter (+)	-	-
(R81) No. 10	Instrument panel center speaker (+)	-	-
(R81) No. 11	LH front door speaker (+)	-	-
(R81) No. 12	RH front door speaker (+)	-	-
(R81) No. 13	LH side tweeter (+)	-	-
(R81) No. 14	LH rear door speaker (+)	-	-
(R81) No. 15	RH rear door speaker (+)	-	-
(R81) No. 16	Backup power supply 2	Always	Battery voltage
(R81) No. 17	-	-	-
(R81) No. 18	Ground 2	Always	0 V
(R81) No. 19	-	-	-
(R81) No. 20	-	-	-
(R81) No. 21	-	-	-
(R81) No. 22	-	-	-
(R81) No. 23	Woofer (-)	-	-
(R81) No. 24	RH side tweeter (-)	-	-
(R81) No. 25	Instrument panel center speaker (-)	-	-
(R81) No. 26	LH front door speaker (-)	-	-
(R81) No. 27	RH front door speaker (-)	-	-
(R81) No. 28	LH side tweeter (-)	-	-
(R81) No. 29	LH rear door speaker (-)	-	-
(R81) No. 30	RH rear door speaker (-)	-	-
(R82) No. 1	Mute	-	-
(R82) No. 2	LH main voice input (-)	-	-
(R82) No. 3	LH main voice input (+)	-	-
(R82) No. 4	RH main voice input (-)	-	-
(R82) No. 5	RH main voice input (+)	-	-
(R82) No. 6	Shield ground	-	-
(R82) No. 7	CAN communication (-)	-	-
(R82) No. 8	CAN communication (+)	-	-
(R82) No. 9	-	-	-
(R82) No. 10	-	-	-
(R82) No. 11	-	-	-
(R82) No. 12	ACC power supply	ACC ON	11 - 15 V
(R82) No. 13	-	-	-
(R82) No. 14	Interrupt voice input (-)	-	-
(R82) No. 15	Interrupt voice input (+)	-	-
(R82) No. 16	-	-	-
(R82) No. 17	-	-	-
(R82) No. 18	Shield ground 2	-	-
(R82) No. 19	-	-	-
(R82) No. 20	-	-	-
(R82) No. 21	-	-	-
(R82) No. 22	-	-	-
(R82) No. 23	-	-	-
(R82) No. 24	-	-	-