Question about 2000 Pontiac Grand Prix

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When I turn on the rear defrost the radio loses reception. is there a short between the radio antenna and rear defrost

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Heated rear windows have a high voltage load, quickest and easy resolve would be to install an inline suppressor to where the aerial plugs into the back of the stereo, available from all car audio store, it will improve your reception also.

Posted on Nov 21, 2009

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Posted on Jan 02, 2017

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Related Questions:

1 Answer

Rear defrost problem


I am assuming that you mean that you are receiving interference on your radio. (Your description is very unclear.)

Window-mount antennas are notorious for bad reception and allowing interference. Your best course would be to mount an after-market external antenna on one of the fenders.

The other option would be to replace the stock Yaris radio (which is very poor quality) with a BETTER after-market radio.

Jul 19, 2014 | 2007 Toyota Yaris Sedan

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Avalon radio


I would check the connections on the grid, if they are ok you have to live with yagi effect.

Mar 25, 2014 | 2000 Toyota Avalon

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2006 hyundai sonata radio reception is poor when rear defroster is on


Sounds like the dealer may be correct to me, but make them guarantee the job.

Oct 09, 2012 | 2006 Hyundai Sonata

1 Answer

Rear defroster lights up, but does not defrost, also very weak car radio reception.


Between the rear passenger window and the back window is a junction where rear defrost wiring and radio antenna connect. Rear defrost wiring becomes loose and burns this unit out. when looking for replacement at salvage yard everyone of them I found had burned up. Lots of La Sabres w/o working rear defrost. I made solid connections for defroster, and added an antennae, not much point in repeating a system that will fail again.

Jun 23, 2011 | 1997 Buick LeSabre

1 Answer

The FM radio reception went out. AM radio reception is still ok. What should I look for to fix the loss of FM radio reception?


Pull radio and check antenna plug in rear of radio, They'll still pull AM with antenna unplugged

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1 Answer

I keep losing fm radio and i cant get am at all


you need to pull radio (or access rear of radio and make sure antenna lead hasn't come loose. Not only for your reception, but it also acts as a ground.

Mar 23, 2011 | 2004 Jaguar X-Type

1 Answer

Radio fades in and out...where is the antenna?


The antenna is part of the back glass. The antenna wires to pick the reception up are the same ones that defrost your rear window in the glass. You can check the connections behind the back "C" pillar posts. If the grids are broken this will reduce your reception.

Dec 02, 2010 | 2003 Jaguar X-Type

1 Answer

2007 Sonata AM radio has no sound. Hit search at 100% volume and tuner scrolls non stop. FM is fine. Antenna?


AM is reflective, FM is not. Best reception is always FM because of this reason. Reflective AM bounces off everything - buildings, trucks, houses, power poles, etc and cause 'shadow' RF which confuses the the radio's AM tuner. However, if this condition exists ALL the time (whether you driving or in your garage), then the problem is either in the audio unit itself or in the rear window antenna (or connection to it). Left "C" pillar cover removed, you'll see the physical connections to the window antenna (it's also the rear defroster heating elements).

Oct 19, 2009 | 2007 Hyundai Sonata Limited Sedan

1 Answer

2003 Mercury Grand Marquis radio reception problem


check the back of the radio, make sure than the antenna, connector is plug into the radio, if it is, then replace the radio.

Jul 30, 2009 | 2003 Mercury Grand Marquis

1 Answer

2006 honda accord rear defrost cuts out radio


sounds like bad connection on glass grid causing interference noise to radio.. does the rear defrost work ok ???

Jul 24, 2009 | 2006 Honda Accord

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