Buzzing after installing Kenwood kdc-bt565u

[Cplayer]

I just installed my first head unit... But now there seems to be a buzzing/light noise coming from the speakers at 0? Any ideas what I could be? I have an 06 Chevy cobalt lt with upgraded pioneer system and factory amp.

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[audiobaun 5,000+ posts]

I just installed my first head unit... But now there seems to be a buzzing/light noise coming from the speakers at 0? Any ideas what I could be? I have an 06 Chevy cobalt lt with upgraded pioneer system and factory amp.

What do you mean by"Upgraded Pioneer System and Factory amp"??What exactly are the amps you are running as well as having it connected/installed..More information is needed of your system install from battery/wiring to after market alternator (or stock),existing wiring being used at the speakers,or new wiring,ground wiring and supply size as well as where you nave grounded ect. I have this HU unit running in my Honda at the moment, and works great.

 

[Cplayer]

I got the car with factory pioneer system, no wires were changed or anything like that. But all the speakers run from the factory amp. So I don't know if it's the interface that is doing something as far as making the sound or what it could be. Connected all the wires from the power harness from the HU to the wire harness that came with the interface. I don't know if it's a ground issue or what