Radio Static? - Chevy Impala SS Forum
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post #1 of 14 (permalink) Old 05-06-2003, 08:15 PM
SSWEET
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My 9C1 seems to have a problem picking up slightly weak (and sometimes even strong) radio channels. This problem has existed since I purchased the car over a year ago and does this regardless of what head unit is in the car (stock or Pioneer DEHP7400). It's really starting to get annoying ... the weirdest thing is that when I put my hand close to the head unit or if another car parks close to mine, some of the weaker channels come through much clearer. On a side note, my antenna plug (the one that connects to the back of the head unit) seems to have trouble keeping the male prong "centered" in the female end on the head unit ... could this be the culprit? Thanks.
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post #2 of 14 (permalink) Old 05-07-2003, 05:57 AM
SS964mo
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I could be wrong but did you use an antenna adapter, I remember using one on mine. I do not have a part number but you can buy them at Walmart

http://www.sounddomain.com

HTH's [img]smile.gif[/img]
Mo.
post #3 of 14 (permalink) Old 05-07-2003, 02:47 PM
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Yes, I did use an antenna adapter for my aftermarket head unit ... but the problem appears to be the stock antenna plug's male prong touching the outside edges of the plug
 
post #4 of 14 (permalink) Old 05-07-2003, 05:24 PM
Elemental
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hmmm...not quite sure what you meant exactly in the last post. but are you sure you got the right antenna adaptor? GM loves to use the tiny ends and always have to be adapted up to the "normal" size...

if it's fitting loosely it's either the wrong adaptor or something is wrong with the plug itself.
post #5 of 14 (permalink) Old 05-09-2003, 09:43 AM
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OK, we've got an update to clarify things a bit more ... first off I managed to rig the antenna jack up in a way that I can obtain clear signals. The catch is, I only get clear signals with the car off and the ignition back ... as soon as the car is on, I seem to be getting some interference in the form of engine noise (just a guess). What could possibly be causing this and is there any proven remedies? Thanks.
post #6 of 14 (permalink) Old 05-09-2003, 07:05 PM
Elemental
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are you running an external amp by any chance? If so try rerouting your RCA's away from any power wires or relays.

also, does this interference change frequency with the engine RPM? or is it just straight static?

could be alot of things but the general cause is the same...electrical interference by something emitting electromagnetic noise.

is the antenna and the antenna wire stock? Or has it been changed at some point in the vehicle's life?
post #7 of 14 (permalink) Old 05-09-2003, 11:10 PM
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<UL TYPE=SQUARE><LI>I am not running an external amp
<LI>The stereo system is stock other than the head unit
<LI>The static is there even with the factory unit
<LI>The static frequency changes with rpms
<LI>As far as I know, the antenna and wiring is stock[/list]
Any ideas
Thanks.
post #8 of 14 (permalink) Old 05-13-2003, 11:44 PM
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Any ideas guys
post #9 of 14 (permalink) Old 05-14-2003, 01:57 PM
Klez
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Buy a new antenna. Yours may have a broken wire or something along that line. I have replaced them before in other cars, it's not that hard.


Good Luck
post #10 of 14 (permalink) Old 05-14-2003, 07:15 PM
booth9c1ss
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<BLOCKQUOTE>quote:</font><HR> Buy a new antenna. <HR></BLOCKQUOTE>

Not the mast, but the stuff inside the RF fender. anther thing you could try: There is an antena plug behind the underhood fuse box... check the connection there... posibly try a new antena at that point too.

9C1s came with radio noise suppression straps. These are braidded copper straping to groung the hood, body, trunklid, exhaust pipes, etc. Are these still in place?

Steve
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