Hyundai Elantra MD/UD: Audio Unit. Components and Components Location
        
        Components

| 
		No | 
		
		Terminal Description | 
		
		Condition | 
		
		Specified Condition | 
	
| 
		A1 | 
		
		Loudspeaker Rear Left+ | 
		
		Needed connection to the car | 
		
		Analog output | 
	
| 
		A2 | 
		
		Loudspeaker Front Left+ | 
		
		Needed connection to the car | 
		
		Analog output | 
	
| 
		A3 | 
		
		Loudspeaker Front Right+ | 
		
		Needed connection to the car | 
		
		Analog output | 
	
| 
		A4 | 
		
		Loudspeaker Rear Right+ | 
		
		Needed connection to the car | 
		
		Analog output | 
	
| 
		A8 | 
		
		Rheostat from vehicle + | 
		
		  | 
		
		  | 
	
| 
		A9 | 
		
		Illumination DIM cancel spec | 
		
		  | 
		
		  | 
	
| 
		A10 | 
		
		Loudspeaker Rear Left- | 
		
		Needed connection to the car | 
		
		Analog output | 
	
| 
		A11 | 
		
		Loudspeaker Front Left- | 
		
		Needed connection to the car | 
		
		Analog output | 
	
| 
		A12 | 
		
		Loudspeaker Front Right- | 
		
		Needed connection to the car | 
		
		Analog output | 
	
| 
		A13 | 
		
		Loudspeaker Rear Right- | 
		
		Needed connection to the car | 
		
		Analog output | 
	
| 
		A17 | 
		
		Rheostat from vehicle - | 
		
		  | 
		
		  | 
	
| 
		A18 | 
		
		Remote supply for motorised antenna | 
		
		Acc on | 
		
		9V ~ 18V | 
	
| 
		B4 | 
		
		Steering Wheel Remote Control | 
		
		Steering Wheel switch pushed | 
		
		0.5V ~ 3V | 
	
| 
		B6 | 
		
		USB D+ | 
		
		USB device is inserted | 
		
		3.2V ~ 3.45 | 
	
| 
		B7 | 
		
		USB /iPod power | 
		
		USB/iPod device is inserted | 
		
		4.9V ~ 5.1V | 
	
| 
		B8 | 
		
		AUX Right Sound Signal | 
		
		External Auxiliary device is Audio playing(At time of Aux jack use) | 
		
		A waveform synchronized with sound is output | 
	
| 
		B9 | 
		
		AUX Reference Ground | 
		
		Always | 
		
		Below 1 ohm | 
	
| 
		B10 | 
		
		Bluetooth MIC+ | 
		
		Input the Voice Signal via MIC | 
		
		A waveform synchronized with Voice data via MIC | 
	
| 
		B11 | 
		
		Accessory | 
		
		Engine switch on(ACC) | 
		
		11 ~ 14 V | 
	
| 
		B12 | 
		
		Battery | 
		
		Always | 
		
		11 ~ 14 V | 
	
| 
		B16 | 
		
		Speed Sensor Signal | 
		
		Engine switch on(IGN), car is moved slowly | 
		
		Approx. 5V Level Pulse Generation | 
	
| 
		B17 | 
		
		Steering Wheel Remote Control Gnd | 
		
		Always | 
		
		Below 1 ohm | 
	
| 
		B18 | 
		
		USB data line | 
		
		USB device is inserted | 
		
		3.2V ~ 3.45 | 
	
| 
		B19 | 
		
		iPod detection line | 
		
		iPod device is inserted | 
		
		GND | 
	
| 
		B20 | 
		
		AUX Signal Input Detect | 
		
		Auxiliary device is inserted | 
		
		0V(Low) → 5V(High) | 
	
| 
		B21 | 
		
		AUX Left Sound Signal | 
		
		External Auxiliary device is Audio playing(At time of Aux jack use) | 
		
		A waveform synchronized with sound is output | 
	
| 
		B22 | 
		
		Bluetooth MIC- | 
		
		Input the Voice Signal via MIC | 
		
		A waveform synchronized with Voice data via MIC | 
	
| 
		B23 | 
		
		Ground | 
		
		Always | 
		
		Below 1 ohm | 
	
| 
		B24 | 
		
		Ground | 
		
		Always | 
		
		Below 1 ohm | 
	


