Question:
I have a 2-channel amp powering a set of components. It's receiving a signal from the head unit with and RCA cable. I know that I have a ground loop problem, because I have a "whining" noise that increases in pitch when I accelerate. However, I also get a really loud buzz only when I turn on my headlights AND take off the parking brake. This only started happening after it starting getting really cold outside (that could just be a coincidence).
How do I remove the stereo from my 2007 Ford Focus Zx3?
Is the buzzing from the headlights due to the ground loop, or is it something else altogether?
Answers:
If i hook up my 1400 watt speaker to a 200 watt amp, will my speaker blow? please help?
Do you have a pioneer head unit? If yes pioneer hu's have been know to have a poor ground plane on the rca output. If you take a piece of wire and strip it back slightly and wrap it around the shields of the rca's and ground it to bare metal that is attached to the chassis of the vehicle, some rca's have a wire on them already and this is what that is for. Also try regrounding your hu on more suitable point. If you have a digital multi meter a proper ground should read less than 0.5 ohms of resistance. A ground loop isolator should always be a last resort as the are just a band aid.EDIT If you want you can email me at audiovolt@yahoo.com. The reason why the noise is also there when you have your headlights on is because your HU's ground is being shared with many other components in the car like your headlights, parking brake turn lights etc. When you add a aftermarket head unit its always a good idea to reground it if your experiencing noise. The other components on that ground are introducing noise into the system because the ground they all share is inadaquite, causing a high resistance ground plane. If you have a meter and meter that ground wire you most likely see a resistance higher than 0.5 ohms.
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sounds like a grounding problemPlease help i don't know how to install a Aerial in my car please help?
It could be a ground problem,however,after a while (depending on the veichle) ,regardless how it's hooked up,you will have to get a noise filter when you have anything like that hooked up. I know for the fact i've been in a number of cars,including my own,that gets this problem after a long period of time.They sell these at any store that sells car audio.check the ground of your amp and the groun of your battery to your chasis
definitely sounds like a ground problem. you may need to purchase a ground loop isolator
sounds like a grounding problem. it cAN also be the way ur amps are wired. try running the amp cables down the other side of the car.
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radio shack has a solution for you,it is alternator,and or interference that can be fixed with a small tranformer that hooks to stereo wiringMore Questions & Answers ...
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