Hi I'm 16 years old and have just bought my first car. It's a 2001 Mazda protoge. Today while I was driving I plugged in a USB charger for my phone and the radio shut off. Now the radio won't turn on and the outlet for the USB charger doesn't work. I have no idea what happened. Could anyone explain?

  • You're lucky it wasn't the cylinder head gasket.
    – Andy aka
    Sep 10, 2015 at 22:14
  • Check the fuse.
    – Chu
    Sep 10, 2015 at 22:15
  • What else could be the problem if all the fuse is working
    – Karen Dawn
    Feb 4, 2017 at 2:16

1 Answer 1


OK so it blew a 15 amp fuse. Thanks for the help. I also want to know how it blew a 15 amp fuse so next time it won't happen. Does the radio actually draw that much current? Or did I short circuit the outlet by plugging the USB charger in? If you could help me figure out why it happened that would be great.

  • Where did you plug USB charger, Is it to a USB port or to the cigarette lighter via USB adapter. Sep 10, 2015 at 23:01
  • Cigarette lighter
    – Trevor
    Sep 10, 2015 at 23:20
  • I recently plugged cheap cigarette lighter/USB charger and had issues. I believe the charger is defective. Sep 10, 2015 at 23:24
  • OK so if I get a good quality charger I should be fine?
    – Trevor
    Sep 10, 2015 at 23:27
  • 1
    You will have to try, It should work fine, I believe Sep 10, 2015 at 23:34

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