Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!eecae!netnews.upenn.edu!rutgers!psuvax1!psuvm.bitnet!cunyvm!ndsuvm1.bitnet!nu128880 From: NU128880@NDSUVM1.BITNET Newsgroups: sci.electronics Subject: Re: Unidentified noise from my car stereo. Message-ID: <1877NU128880@NDSUVM1> Date: 14 Feb 89 19:17:48 GMT References: <566@occrsh.ATT.COM> Organization: North Dakota Higher Education Computer Network, Fargo, ND Lines: 18 DISCLAIMER: Author bears full responsibility for contents of this article. As far as the problem occurred, I agree that messing with the ground wires in eliminating the noise. Either ground all the components in the system at the same point, or ground them in a series (i.e., ground the equalizer to the stereo, and then ground the stereo to some good ground point.) Make sure you aren't grounding to a painted surface. When you flip your headlights on, they are grounding out, and you are setting up a possible ground loop, which can reck major havok on the noise in your system. Try grounding the stereo on the chassis, or if possible directly to the negative post of your battery. Also, the use of a capacitor across the positive and negative leads (make sure the capacitor is of 50 volts or more). Noise in car stereo is an incredible pain, and nothing short of trial and error will eliminate it. Steve Frank -nu128880@ndsuvm1 "Sorry man, 10% THD just isn't going to cut it"