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Old 04-18-2021, 04:14 PM   #1
Andrewkd
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Blown Amp Fuse after installing aftermarket HU

Hey guys, i recently installed a kenwood DMX4707S along with a metra harness and a autoharnesshouse 28 pin kit, after installing everything worked but the door speakers, I found that the amp fuse was blown... Any idea why? And what should I do to prevent it from blowing another fuse.

Thank you!
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Old 04-18-2021, 05:03 PM   #2
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it didn't like you touching precious.

if it keeps blowing you've got a wiring problem. if it doesn't, you messed up while installing it and didn't notice.
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Old 04-18-2021, 10:39 PM   #3
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it didn't like you touching precious.

if it keeps blowing you've got a wiring problem. if it doesn't, you messed up while installing it and didn't notice.
Haha that made me LOL

Yeah it's very odd that it blew up bot I will replace it, any idea what to do if it happens again?
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Old 04-18-2021, 11:45 PM   #4
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i always reinspect the part that changed. first step is to return to the stock radio, and make sure nothing changed, then inspect the adapter harness for likely miswiring. optionally, try a different aftermarket radio to confirm a miswiring(same final problem, different known-good radio, just in case the one you've got is a dud)-- but that should be a last resort, as most people don't have extra aftermarket radios laying around, and they rarely do anything that would cause fuses to blow.
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Old 04-21-2021, 01:53 AM   #5
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i always reinspect the part that changed. first step is to return to the stock radio, and make sure nothing changed, then inspect the adapter harness for likely miswiring. optionally, try a different aftermarket radio to confirm a miswiring(same final problem, different known-good radio, just in case the one you've got is a dud)-- but that should be a last resort, as most people don't have extra aftermarket radios laying around, and they rarely do anything that would cause fuses to blow.
i replaced the fuse and it didnt blow up, but still have no audio from door speakers... really odd
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Old 04-21-2021, 10:17 PM   #6
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did the remote turnon wire get connected to the new radio? i believe there's 2 of them. one in the speaker harness, and one in the radio power harness.
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