Connector H, Hands-free microphone. Only on cars manufactured up to week 34, 2001 inclusive

Fig 1: Connector H, Hands-Free Microphone. Only On Cars Manufactured Up To Week 34, 2001 Inclusive

Courtesy of VOLVO CARS OF NORTH AMERICA.

Control module terminal	Breakout box terminal	Signal type	Ignition on	Other
1	-	HF MIC signal	Hands-free microphone signal	Alternating current when there is sound from the hands-free microphone
2	-	HF MIC ground	Hands-free microphone ground	Ulow