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Old 05-31-2016, 09:53 AM
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Cigarette lighter causing static

This has been a problem since I biughr the jeep. Whenever I am trying to liaten to the radio, and I plug in my phone to change it, I then get static on all of my radio stations. What makes this even more strange is that when ian three hours away from home at school, it doesnt do it nearly as bad.

Has anyone ever had this problem and come up with any solutions?

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Old 05-31-2016, 11:36 AM   #2
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Originally Posted by p.sauce1123 View Post
This has been a problem since I biughr the jeep. Whenever I am trying to liaten to the radio, and I plug in my phone to change it, I then get static on all of my radio stations. What makes this even more strange is that when ian three hours away from home at school, it doesnt do it nearly as bad.

Has anyone ever had this problem and come up with any solutions?

Outside is Beautiful
Buy a better quality cell phone charger.

The noise is caused by the switching power supply in the phone charger, and since it's probably a cheap charger the manufacturer didn't spend any time minimizing noise that backfeeds into the cars 12v system.

The reason it only affects the radio in some areas is likely because you are physically closer to the radio transmitter when you are at school, and are receiving a higher power and better quality signal in that area.

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Old 05-31-2016, 12:01 PM   #3
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X2 to what njs552 said exactly.
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Old 05-31-2016, 12:07 PM
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Buy a better quality cell phone charger.

The noise is caused by the switching power supply in the phone charger, and since it's probably a cheap charger the manufacturer didn't spend any time minimizing noise that backfeeds into the cars 12v system.

The reason it only affects the radio in some areas is likely because you are physically closer to the radio transmitter when you are at school, and are receiving a higher power and better quality signal in that area.
Ill have to try a newer one when I get home. But this charger worked in my previous truck, could that mean anything?

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Old 05-31-2016, 12:16 PM   #5
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The previous truck's radio could have had better filtering on its power input lead. Regardless, some chargers are cheaper and electrically noisier than others.
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Old 06-01-2016, 04:18 PM
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New charger did not solve the problem. However I did notice that with both the old and New charger, it varies on where I put my phone

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