2003 3000/GT radio does not work,static noise coming through speakers with radio on or off.pulled radio fuse noise went away,pulled Power window fuse noise went away,pulled radio and all plugs noise still there when key on,Is there an amp in car and could this be the problem and or a bad ground,if amp suspect where is it located in car?
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The fuse might be built into the cable to the lighterand/or radio. It's called "fusable link", this type of fuse looks like a cable. Or another type of fusable link might be in the fuse box under the hood near the firewall.
After I read this whole post and the solution by other guy. I came to my own conclusion is that you may have an exposed wiring that causes the static sound out of speakers. Try to look for bare wiring that may have touch each other as well as touching the metal of the vehicle. Try to disconnect the wires at the speaker, and see if it works. If it does works, then you know that you have wiring issue there.
The volume control on your radio is called a potentiometer, which may be going bad. It works better when its warm because materials expand as they warm up and make tighter contact with each other.
It is also a possible a bad wiring connection exists. Poor contact will cause static, poor audio quality and intermittent output.
Your radio will have plug type connector(s) Your speakers will most likely each have two wires with single female spade connectors of different widths (keeps the polarity correct) the wire with the stripe (of whatever color) will be connected to the negative (-) speaker terminal.
So you need to check all the connections, one is making poor contact.
If both speakers (assuming you have two) sound good or bad... then start with the plug connectors for the radio and any independent black ground wire coming out of the radio.
If one speakers sounds okay check the connections on the other one. You check the connections by carefully pulling the speaker wire off of the speaker and then carefully pushing it back on making sure it feels tight and secure.
PS: If you pull the fuse for the radio, the radio will have no power and will not work. The radio coming on proves the fuse is good.
PSS: Your owners manual should provide lots of information on your sound system components.
take out the speaker in question and test it.
a 9v battery is good enough to 'burp' it.
if it makes a scratchy noise when you put power to it then you have a short in the voice coil.
Burping a speaker is just a short power up. Don't hold power to it.
Tap it on and off like a music note measure.
does your system have power amplifier aside from your built in amp on radio? if yes, disconnect all supply then put new fuse. try this time, should not blow the fuse. then one by one, connect the supply fo your radio only, if ok, then next is the amplifier, if it blow the fuse, your power amplifier has an issue.