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Old 04-14-2017, 04:59 PM   #1
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Default Radio shuts off when turned too loud?

What would cause this, my guess is, there's a short in the wiring or the cheap stock speakers can't handle the new reciever. Just thought I'd look for any advice I can get.
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Old 04-14-2017, 05:48 PM   #2
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It may not be enough impedance for the radio. Read the owner's manual to see how many ohms the speakers need to be. Maybe it needs 8ohm speakers, and the stockers are 2ohm, or something like that.

Try temporarily wiring in a couple more speakers to add load to it. I had to do that to my system.
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Old 04-14-2017, 05:51 PM   #3
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Most car audio speakers will be 4 ohms, not including subs which can be less. home audio usually 8.
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Old 04-15-2017, 01:32 AM   #4
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in other words, there is a mismatch between the radio and the speakers, and the radio is shutting down and going in to protect mode.
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Old 04-15-2017, 02:05 AM   #5
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Not always the case in car audio. Check your connections. I used to do car audio in my old Jeep and rebuilt the system half a dozen times. Make sure your wires are securely connected to the speaker terminals and aren't arching off anything.

Most of any car audio equipment that has any type of thermal protect or safety switch are amplifiers so they don't over heat and fry the inside boards. I can crank the radio in my truck as loud as possible and it won't cut out.
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Old 04-15-2017, 03:33 AM   #6
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Also in car audio if the speaker ohms are higher the amp would put out less power to the speakers,
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Old 04-15-2017, 09:36 PM   #7
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Or you just can rip it out and smack it around a bit.
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Old 04-16-2017, 12:51 AM   #8
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Thanks for the suggestion you guys. My ground wire and the harness was crap so i wired it onto some metal for better ground. Cleaned up all the wiring, polarity was out. And it all works pretty good, got some free 6.5in speakers installed in the back and i moved the stock rears to the doors, just for sound in the in-term. Thank god for volt meters.
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Old 06-19-2017, 07:17 PM   #9
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#1 cause of this is no ground. I do mean NO ground, by the way. Nissans ground through the chassis of the radio, so there is no ground wire from the factory. You have to add your own. If you don't, the radio uses the antenna as the ground, and it isn't enough. Once you ask for more current than it is capable of supplying, it shuts off, or garbles the sound depending on the radio. Super common on Nissans.
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Old 06-19-2017, 09:01 PM   #10
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^ your roadster? (off topic, sorry)
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