Quick question, buzz/whine in all speakers, even with radio off

[Nagamitsu]

ed my amp, yay! Now issue is that if I turn on ignition to accessory, not even starting car, radio off (or on), I get this buzzing in all the speakers.

If I start the car and give it gas, it sounds like typical alternator whine.

Is it bad ground or is it RCA cables possibly next to some form of power in other wires?

I don't think it is the amp necessarily, as my other amp powering the subs, the subs also have a buzz in them.

Tim

[Nagamitsu]

All sorted! Thought I'd have an installer look at it and assist in the troubleshooting. Just got back from Burlington Radioactive, after trying a few different things, to fully confirm what we thought, tried a similar Kenwood deck hooked up and it was fine.

Deck pre-outs were bad/affected. I still have 6 months warranty left on the deck, so it's getting sent to Kenwood for repair/replacement. Happier than a pig in $hit, as my worst fear was my amp having an issue.

Tim

[ppia600]

Be sure your amp has a solid ground connection or it may fry your new kenwood deck's rca internal connections.

[Perry Babin]

In the future, if you have loud engine noise, check the RCA shield ground. The test procedure is shown on the following page.
RCA Shield Repair