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Speakers Clipping at Low Volumes
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<blockquote data-quote="hispls" data-source="post: 8833073" data-attributes="member: 614752"><p>Here in USA any auto parts store will "load test" your battery for no charge, that's a good starting point to be sure that's up to the job, though generally if your battery is so weak your head unit is not performing your car wouldn't be starting in the morning. May as well look and see that the connections up under the hood are tight and free of corrosion at least which is never bad practice in general.</p><p></p><p>I personally have seen or heard of few factory grounds for head unit having trouble, keep in mind most heads will also try to "find" ground through the antenna as well so even if the black wire into the head is a bit off things sort themselves out when you plug in the antenna.</p><p></p><p>Also worth looking at is whether speaker wire between the head unit and speakers is shorting out. A failure somewhere in the insulation on that speaker wire could cause all manner of trouble and eventually break your head unit. If you have a known working speaker you could pull the head unit, disconnect the speaker outs that run to your stock locations, and connect one known working speaker to each speaker out from the source unit and see if you can replicate the problem once you've removed the wires going to the stock locations from the equation. At that point if you're still having trouble you may consider just pulling the head unit and powering it up with a car battery and repeating the same test. I've been running Sony head units for some time now and they have been doing me very well so unless something was abused the head unit itself isn't a prime suspect for me.</p></blockquote><p></p>
[QUOTE="hispls, post: 8833073, member: 614752"] Here in USA any auto parts store will "load test" your battery for no charge, that's a good starting point to be sure that's up to the job, though generally if your battery is so weak your head unit is not performing your car wouldn't be starting in the morning. May as well look and see that the connections up under the hood are tight and free of corrosion at least which is never bad practice in general. I personally have seen or heard of few factory grounds for head unit having trouble, keep in mind most heads will also try to "find" ground through the antenna as well so even if the black wire into the head is a bit off things sort themselves out when you plug in the antenna. Also worth looking at is whether speaker wire between the head unit and speakers is shorting out. A failure somewhere in the insulation on that speaker wire could cause all manner of trouble and eventually break your head unit. If you have a known working speaker you could pull the head unit, disconnect the speaker outs that run to your stock locations, and connect one known working speaker to each speaker out from the source unit and see if you can replicate the problem once you've removed the wires going to the stock locations from the equation. At that point if you're still having trouble you may consider just pulling the head unit and powering it up with a car battery and repeating the same test. I've been running Sony head units for some time now and they have been doing me very well so unless something was abused the head unit itself isn't a prime suspect for me. [/QUOTE]
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