Radio not working

2005 CADILLAC STS
70,000 MILES • 6 CYL • AUTOMATIC
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MLMATNEYSR
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I put a new battery in my car and the radio will not come on.
Aug 20, 2011 at 10:27 PM
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STRAILER
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Hey MLMATNEYSR,

It sounds like you have a fuse that went out here is a guide to help you check the fuses. The fuse is in the right rear fuse panel.

https://www.2carpros.com/articles/how-to-check-a-car-fuse


Here is a wring diagram and guide that will help you see how the system works.

Was the key on when you replaced the battery or did you jump the vehicle backwards?

Check out the diagrams (below).

Please run some tests and get back to us so we can continue helping you.

Best, Ken
Jan 4, 2017 at 10:54 AM
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VAL
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I had this same problem and it was the fuse that went out. Thanks for this site.
Apr 19, 2018 at 1:29 PM
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KXSE ONINE
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Where’s the fuse located?
Jun 7, 2019 at 11:54 AM
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STRAILER
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It is the radio/Onstar fuse under the rear seat. Check out the diagrams above.
Jun 8, 2019 at 1:35 PM
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KXSE ONINE
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put in new fuse, still no radio
Jul 4, 2019 at 6:41 PM
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STRAILER
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Do the lights come on but no sound?
Jul 5, 2019 at 11:01 AM
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KINDSCHI07
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I had this problem and had to replace the radio with new cost me $243.00. I guess the voltage surge wrecked it.
Dec 9, 2019 at 11:49 AM
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QDG
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For some reason the audio adjust system will not move the speakers back to the center point, It seem to be stuck far left speaker and rear speaker I adjusted the speaker to the left and to the rear and know I can't get
it back to center. the left and rear touch screen buttons are grayed out.
Dec 9, 2019 at 11:49 AM (Merged)
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FACTORYJACK
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The left and rear touch screen buttons are grayed out, probably because the maximum limits of left and rear have been achieved. Is the audio playing out of the left rear speakers only? You said you adjusted it to the left and rear, try adjusting it right, and forward.
Dec 9, 2019 at 11:49 AM (Merged)
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QDG
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yes the sounds only coming from the left rear. I have tried to
adjust back to the center and I have tried to adjust far right and fade to the front with no results. the right and foward buttons are highlighted.
Dec 9, 2019 at 11:49 AM (Merged)
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FACTORYJACK
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Are the icons indicating that you are pressing them, indicating that the touch screen is responding? You might be able to disconnect the battery, and may even do both cables and short them together. The return to power, might restore it to default center position. This doesn't explain why it is not functional, but will restore to normal condition. I will try and research the symptom, see if I can find some info.
Dec 9, 2019 at 11:49 AM (Merged)
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FACTORYJACK
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Is this the only symptom you have noticed? Is it locked on the audio adjustment screen? There is a bulletin concerning a navigation radio software upgrade. Of the several symptoms it addresses, one is 'navigation radio screen locks up'. Doesn't give any details on the exact nature of the problem, though.
Dec 9, 2019 at 11:49 AM (Merged)