Xref: utzoo sci.electronics:5092 rec.autos.tech:6463 Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cwjcc!tut.cis.ohio-state.edu!rutgers!att!occrsh!rjd From: rjd@occrsh.ATT.COM (Randy_Davis) Newsgroups: sci.electronics,rec.autos.tech Subject: Re: Unidentified noise from my car stereo. Summary: Possibly loose or missing ground wire Keywords: Hum, Noise, Annoyance Message-ID: <566@occrsh.ATT.COM> Date: 10 Feb 89 14:51:28 GMT References: Reply-To: rjd@occrsh.UUCP (Randy_Davis) Followup-To: sci.electronics Organization: AT&T Network & Data Systems, OKC Lines: 17 In article wolpert@caip.rutgers.edu (Seth Wolpert) writes: | |One of my trusty vehicles, a 1982 Nissan Stanza has a strange noise |coming through the speakers. It's a hum- sounds like a couple of |hundred hertz, with the following symptoms; | |The pitch and loudness never vary (i.e. with engine RPMs). |It only occurs when the lights (parking lights, low beams, or |high beams) are turned on. |It happens with both tape and FM. I have been successful in fixing both alternator noise (which varies with RPM) and your type of noise by checking and tightening or adding the ground connections on the system. Strange how a little simple fix like that can work.... Randy