The AVH-X3600BHS internal amplifier expects . Using 2Ω or 3Ω speakers (often found in premium factory systems) will overheat and damage the radio. If your car has a factory amplifier, use the RCA pre-outs, not the speaker wires.
If you have just purchased a —or you are trying to resurrect an old unit from a previous vehicle—you are holding a piece of legendary car audio history. This double-DIN DVD receiver brought Bluetooth, HD Radio, and AppRadio One to the masses. However, even the best technology is useless without the correct wiring. Pioneer Avh X3600bhs Wiring Harness Diagram