Question about 1992 Saturn SC

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My car radio doesn't work and we are thinking that there is no hot wire from the engine or battery to the radio because it is not gettin any power at all. We tried switching out radios but that still didn't work. Please help if someone can tell me whats wrong I would gladly appreciate it.

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One should have a constant 12volt... and another should have 12volt only when the key is on run or accessory position

this is a helpful diagram:
http://www.installdr.com/Harnesses/GM-Wiring.pdf

Posted on Oct 27, 2009

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Is the oil filter supposed to screw all the way in when you change the oil?

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How do you know its the hot wire?? Did you try the fuse panel first for blown fuse? Also you can use a volt meter to test for power of the radio.

Posted on Sep 21, 2009

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1 Answer

I had a radio installed in my 2004 chevy impala and now the battery is always running down and the systems are not working right. what can I do to fix this


You apparently did not hook the radio up to a hot wire when switch is on 'only'. The radio is constantly pulling power from battery even when parked and off with key out. Turn switch on, find a hot wire, turn key off. If power goes off, use that wire for the radio. That's it. Done. Stop replacing batteries now. As for the heater and defrost, you've given no symptoms other than the Battery drain.

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2000 chrysler cirrus only starts with jump.all lights radio windows work engine gets hot fast


have the battery load tested and properly checked out it may be the problem. it doesn`t take much voltage to operate the lights and radio. as far as the engine getting hot check the rad coolant fan for operation, the thermostat, coolant level and circulation, have head gaskets check for a bad head gasket.

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Why did my radio stopped working?


double check all your connections. you can always bench test the radio with a car battery and any speaker. find your 2 hot wires and 1 ground. (1 hot wire is for memory, but with some radios it will need power also to bench check) make sure all your radio fuses are good, run a set to the speaker, then run the wires to the battery. if the radio powers up, the problem isn't the deck. this has worked for me several times.

you can skip connecting the speaker, but I prefer to make sure everything works before I reinstall.

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You are loosing power to the keep alive memory circuit of the radio. I think you may have a defective ignition starter switch. Also there are two hot wires to the radio, one powers the radio, one holds memory and is called the Keep Alive Memory constant power wire. Here is the wiring colors, pull the radio and check the memory power supply wire.
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2007 chev cobalt changed battery now radio doesn't power on at all


For radio related problem, check the radio help links .Click the link below to go through its procedure:----- How to reset Radio code after car battery is died?

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------------- Can car radio code block Passkey anti theft system ?

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http://repairhelpcenter.blogspot.com/2011/11/how-to-remove-radio-on-acura-car-models.html

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http://repairhelpcenter.blogspot.com/2012/01/lexus-rx330-radio-has-power-but-no.html

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http://technoanswers.blogspot.com/2012/01/radio-goes-on-and-off-while-driving.html

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This will help.
Thanks.

Feb 28, 2012 | Cars & Trucks

1 Answer

I think my alternator is bad would this also


NO. The alternator feeds the battery, not your cars systems. The car systems are powered by the battery and the battery is constantly charged by the alternator. If your radio doesn't have power, check the fuse first, then the hot lead to the radio with a test light do not ry to "spark" the wire to test for power as this will blow the fuse. A radio fuse is only a 5 or 10 amp fuse and is very easy to blow out.. If the radio is getting power then the radio has to be replaced

Mar 22, 2010 | 2000 Ford Escort

1 Answer

All the wires are hooked up to my radio correctly but when i crank my car or turn the key back the radio doesn't come on. then when i cut the park lights on the speakers make some kind of flickering noise...


I think you need to check your power wires to your radio. This is a common mistake. There are several power wires to deal with. One wire stays hot to keep the clock and radio presets working. The second is Hot when the key is turned on. The third is hot when you turn on your lights for instrument lighting. If you connected this wire for your power source, You would have this problem you are describing. If it's wired correctly, Check the ground wire to the radio. Hope this helps.

Mar 13, 2010 | 1995 Buick LeSabre

1 Answer

Cooling fan


Here are the cooling system diagnostic steps...First does the cooling fan kick on (with engine hot)? If not, check the fuse, if good then check the thermoswitch in the radiator (it's about an inch and a half in diameter located on the lower part of the radiator with two wires ) by disconnecting the wires and touching them together (again, with engine hot...at least 190 degrees) if the fan comes on, you have a bad switch. If not connect a 10 gauge jumper wire from the battery to the fan itself (there are three terminals,,, one high, one low and ground). With power direct from the battery (and a ground wire, if necessary) fan should run... if not replace the fan assembly... if it does run then you have a bad cooling fan relay (under the dash, I believe). Hope this helps... ;-)

Apr 19, 2009 | 1995 Volkswagen Passat

2 Answers

Wont hold charge in expedition


  1. Check the wiring of the new radio installed as follows..
  2. Disconnect battery ground
  3. verify radio ground wire is grounded to metal
  4. verify radio hot wire (normally red and thick) is connected to a power source that is off when the ignition key is in the "off" position.
  5. verify that the always hot wire is connect to a constant 12v power supply even with the ignition off.
  6. make sure the pwr antenna wire if not used is taped at the tip and not touching any metal.
  7. verify that all speaker wires are connect correctly and not shorted to ground.
  8. connect battery ground you may get a small spark if your courtesy lites work.
  9. start engine verify your battery is charging by disconnecting the battery ground cable while the engine is running, it should continue running if it don't, alternator maybe bad.
  10. If it continues running problem solved..

Nov 11, 2008 | 1987 Ford F 350

1 Answer

91 cavalier


There is a "Fuseable Link" in one of the battery cables. They're available at most automotive parts stores.

Aug 23, 2008 | 1991 Chevrolet Cavalier

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