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Old 06-03-2013, 08:29 PM   #1
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Thumbs down Buzzing in Stereo

We have a 2013 Sandstorm T266SLR. It has a dimmer switch for the outside light by the front door. Whenever this light is on there is a buzzing sound from the stereo. The sound used to be louder than the music. We took it back to have fixed and they said it was because the light and stereo are using the same ground wire. The dealership installed a filter which quieted the sound, but it is still annoyingly loud. We tried to take it back again and the dealer said that there is nothing more that can be done, and that we just shouldn't use the light and the stereo (sound for TV) at the same time.

Has anyone else had this problem and been able to find a way to eliminate the buzzing?
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Old 06-04-2013, 03:29 PM   #2
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Hey, just bought mine this year too, I will check tonight since we haven't went camping yet. I'll let you know.
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Old 06-07-2013, 09:16 AM   #3
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Checked on mine, doesn't do it. Go back to the dealer!
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Old 06-07-2013, 10:11 AM   #4
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The buzz is electrical noise. First find the source of the electrical noise. Is your door light an: LED or Fluorescent bulb? Fluorescent bulbs are notorious for being electrically noisy. Certain LED bulbs starting to show up in the industry are also noisy. So first is to make sure this bulb is a filament style; if it isn't then replace the bulb with a standard bulb (or filament bulb) - might be the fix right there.
Otherwise, the issue is likely in the power converter (the box converting AC to DC) likely part of your power panel has insufficient filtering for high electrical loads. The fix, whether sharing a ground wire or a noisy converter, is the same. You need more electrical filtering and noise suppression for the radio power. So you (or your favorite nerd) should pull the stereo and install more filtering on the power wire. Either install a very expensive and heavy power filter (or) install 3 or 4 basic 12V power filters in series with the radio power wires. This will reduce the noise to a nearly imperceptible level. Use caution and be mindful to disconnect the 12V power making any electrical modifications.
Have fun - electricity is cool, sparks are not cool.
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Old 12-03-2013, 02:47 PM   #5
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I don't know if you solved this problem but I replaced the dimmer switch with a regular switch and eliminated the buzzing noise completely. I'm not sure why a dimmer was put on the outside flood lights???
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