These leads plug directly into your head unit. Replacement Head Unit Lead which can be used when the original lead has been damaged or lost and come supplied to ISO connection. 16 pin 03 These lead is designed to fit the following Pioneer units: Series DEH DEH-30MP DEH-50UB DEH-110E DEH-112E DEH-171 DEH-200MP DEH-281MP DEH-1000E DEH-1020E DEH-1050E DEH-1100MP DEH-1100MPB DEH-1110MP DEH-1120MP DEH-1200MP DEH-1220MP DEH-1500R DEH-1510 DEH-1530R DEH-1550 DEH-1550B DEH-1590R DEH-1600R DEH-1600RB DEH-1610 DEH-1630R DEH-1700R DEH-1730R DEH-1770 DEH-1800R DEH-1820R DEH-1900R DEH-1920R DEH-2000MP DEH-2000MPB DEH-2020MP DEH-2050MP DEH-2050MPG DEH-2100UB DEH-2110UB DEH-2120UB DEH-2700R DEH-2700RB DEH-2750MP DEH-2790MP DEH-2800MP DEH-2800MPB DEH-2820MP DEH-2900MP DEH-2900MPB DEH-2910MP DEH-2920MP DEH-2950MP DEH-3000MP DEH-3100UB DEH-3700MP DEH-3730MP DEH-3780MP DEH-3900MP DEH-3910MP DEH-4000UB DEH-4700MP DEH-4700MPB DEH-5000UB DEH-6010MP Series DEH-P DEH-P40MP DEH-P55BT DEH-P70BT DEH-P77MP DEH-P85BT DEH-P88RSII DEH-P800BT DEH-P2500R DEH-P2500RB DEH-P2530R DEH-P2600R DEH-P3100UB DEH-P3500MP DEH-P3590MP DEH-P3600MP DEH-P3600MPB DEH-P3630MP DEH-P3950MP DEH-P4100SD DEH-P4500R DEH-P4800MP DEH-P4900IB DEH-P4950MP DEH-P5050UB DEH-P5500MP DEH-P5530MP DEH-P5600MP DEH-P5630MP DEH-P5680MP DEH-P5700MP DEH-P5700MPB DEH-P5730MP DEH-P5800MP DEH-P5900MP DEH