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Re: My head unit is cutting out.
Are you running an amp? or just the head unit with speakers? cause if you are running an amp, it may not be the right power for the speakers, and could be cutting out from being over powered. if it is from the headunit only with no amp, then you might need to replace your speakers to the right ohmage, and wattage size, you may be to low on it.if you are running an amp tho, check the amp wattage,it might not be powerful enough to power the speakers.and you would need to step the amp up , if the amp is a 100watt rms remember that it is not really 100 watt, it is broken down about 35 watts per speaker.and if you try over driving it the amp will over heat and shut off.
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The best advise I can give and the worst mistake you can make while trying to install a new head unit into a car is DO NOT CUT THE STOCK HARNESS.
New head units come with bare harness with just wire ends, so you may think you need to cut off the harness on the car to wire it in.
This is the worst thing you can do. As a matter of fact, it is a bad Idea to cut any harness for anything in your car as they make wiring harness adapters to fit every thing in your car.
Before you install your head unit, go to Best Buy, or any car audio place, or on the internet and get a harness to suit the install. For instance if you have a pioneer head unit, and a 2007 Honda, you want a pioneer to 07 Honda wiring harness. This will allow your head unit to connect right into the stock wiring harness.
did you hook this head unit up or did you have some one hook it up for you? most of the time it is that factory amp that makes it cute in and out. take the head unit out of you car and hook it up with a 12 volt power in your house or on you battary with a speaker and if it still cuts out the amp chip need to be replaced. let me know if this helped. thanks.
Kim ( Owner ) KS AUDIO www.ksaudio99.webs.com firstname.lastname@example.org
You have a shorted speaker or speaker wire. If a wire is touching metal lightly it may not have full continuity (short) and will work until more voltage (volume) is sent to the speaker and causes the short. Disconnect all speakers at the radio then turn the unit back on. Turn up the volume and see if it cuts out. If it stays on, re-connect speakers one at a time and test. Once you find the problem speaker, disconnect the wire at the speaker then test again. This will eliminate the speaker itself as the problem. Test again. If it still shorts, trace the wire from dash to speaker and look for a cut in the sheathing exposing the wire. Repair or replace the wire and you should be good to go. If the unit cuts out with all speakers disconnected, the problem is internal and will need to be serviced. Before you repair/ or replace the unit either check all the wiring and the speakers or have someone do it for you so it does not give you a repeat performance. Hope this helps.
Make sure that Loudness switch is turned off & bass is not boasted up. Most cars have small cheap speakers that can't handle the bass. also its better to cut the low frequency from the woofer using a passive or active crossover. Most nowadays head units have got some sort of built in crossover. Refer to your head unit manual.
check your ground wire ..
then check battery has enough charge..
usually fault is in where your stereo is connected to your ground source.. good luck ,if no luck try your checking your speaker wires for a short..
well, the USB problem i cant help you with, but if the cd isnt loading, theres probably something wrong with the loading mechanism, which usually means that the unit is faulty. it would be more cost efficient to buy a new head unit than to pay someone for the parts and labor to repair the one you have.
ok , ive found the problem with mine. I checked the voltage between the earth wire on the head unit and the battery in the car. I found that when i turned the headunit up to around 17-20 there was up to 3volts differance, which is when it would cut out. So ive run a new earth wire and she's all sweet . Even the cd player works now.
you mean that the SUBWOOFERS connected to the amp cuts off and come back on randomly?? did you bring the SUBS level to a high volume ? i suggest to check first the value of the speaker (ex. 4 , 8 , 16 ohms ) matches the same value with the amp . second , hows the subs connected , in series ? or parallel . you will need a multimeter for this task .
You may have speakers of an incorrect impedance attached to the unit since the problem occurs when audio signal level is increased and the current goes up.The unit is shutting down to prevent damage. I would check the speaker connections and make sure that the speakers impedance are matched for the unit you are using.