Blown main fuse


Asked by Jun 23, 2017 at 08:41 PM about the 2014 Kia Optima EX

Question type: Maintenance & Repair

I have a 2014 kia optima ex I installed after market
subwoofer with amplifier and interior ledglow
colored lights I took it to kia and i told them that
the steering wheel would go in and out and the
warning light would go on and off they said that
they could not do any more testing until I got a new
battery and the only thing that showed up was that
The battery wasn't getting a charge so I change
batterys and it can back but by the time it came
back the warranty was up now the main fuse that's
connected to the battery is blown the steering is
out and the check engine light is on and now the
battery light comes on and my neighbor who is a
mechanic diagnose the problem with his scanner
and it only shows that the battery is not getting a
charge also but the guy at Kia said I had to replace
the full harness of the car which would cost over
$400 also if I can just replace the main fuse to the
battery positive terminal where can I buy that
online or in stores

6 Answers


Which terminal in the picture did you hook the subwoofer amplifier to?

1 of 1 people found this helpful.

The positive main fuse thats blown


Should have hooked the amp to the terminal nearest the battery and installed an appropriate fuse in line close to the battery to protect it.


I know that now I would need a solution


Your solution seems to be at a Kia dealership. After 15 minutes of looking I have found many 150 amp Kia fuses, but no 180 amp. fuses.


I found this website called and they have the 180amp fuse I bought the fuse on Saturday and it hasn't shipped yet since they only ship week days

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