radio fuse shorts out

2016 TOYOTA 4RUNNER
45,000 MILES • 6 CYL • 4WD • AUTOMATIC
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RON MATASON
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Radio worked then stopped. No audio. All other functions seem to work. Replaced 30 A fuse and it immediately blew. Toyota wants $400.00 to diagnose the problem and find the short. Are there any common issues with these amps shorting out?
Dec 20, 2019 at 7:09 PM
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SCGRANTURISMO
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Hello,

The only Technical Service Bulletin [TSB] that I could find on the stereo unit is in the diagrams down below. I have also included a wiring diagram for the stereo/amplifier for your vehicle along with guides on how to find shorts to grounds in an automotive electrical circuit. You will need to use a Digital Multi-meter [DMM], so here is a link to a guide below explaining how to use one, if needed:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Dec 21, 2019 at 1:23 AM
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STRAILER
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I do not see a 30 amp fuse in the radio system which number fuse is it and where is it located?
Dec 21, 2019 at 6:33 PM
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RON MATASON
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Thanks. I'll review the information you sent.
Dec 30, 2019 at 3:35 PM
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STRAILER
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Any luck on this?
Dec 30, 2019 at 3:35 PM