If you have installed an aftermarket car stereo into your car, the radio might start draining the car battery when off if installed incorrectly. This can cause the car battery to die overnight, so when you need to go work in the morning you can't start your car. Now it can either be related to the wiring on the car stereo of an aftermarket amplifier if you have installed. We have a few ideas for you to fix the battery drain problem on your car. However, if your car battery is more than five years old, its ideal to replace it as it may no longer can hold sufficient charge.
Its best to check the wires on the back of the
car stereo harness that relate to obtaining power from the battery to stereo.
Three main wire are coloured yellow, red and black.
Checking the Car Stereo Side:
1) Turn off the cars ignition.
2) Remove the car stereo from the din slot.
3) You will see a wiring harness plugged into the
back of the car stereo. It will have many wires, including speakers etc.. the
ones that we are looking for are red, yellow and black.
4) The black wire (ground) needs be directly
connect to the negative on the car battery or some metal part of your car. The
yellow wire needs to be connected to the 12 volt positive from the car battery.
As for the remaining red wire, it should be connected to a switch linking to
the 12 volt line from a positive wire from the car that is controlled by the
ignition. So every time you turn the key it controls the power either allowing
or terminating the power.
The main problem is usually the red wire is
connected directly to the positive wire on the car battery. This causing the
car to have no control over allowing and disconnecting the power. If you are
still having this problem and you have a car amp installed into the trunk
follow the next step.
Checking the Car Amplifier Side:
1) Pop the trunk to locate your car amp that is
installed inline with your subwoofer.
2) There are three main terminals on the car amp
to power it on.
'12 Volt Power' goes to battery 'Ground' goes to
metal chassis and 'Remote' controls the power.
3) If you have no remote wire in your car amp and
is in the direct 12 power terminal, or the remote wire has a wire going into
the 12 volt red wire, this will cause the car to still be powered on causing
the battery to drain.
4) Find the 'Blue' remote wire coming from the
back of the car stereo wiring and connect it into the car amp 'Remote Turn On'
terminal.
The problem should now be fixed if your car
stereo keeps draining your car battery if it is related to your car amplifier.
If you still have problems, there might be other electrical devices in your car
that could cause this problem. This can be things such as a faulty window switch
or dirt in your cig socket cause a short.
Having problems with your car? Pellon Auto Centre can help. Offering a full range of services and repairs to get your car back on the road.
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