Question about Cars & Trucks
No quick fix there. Dealer would be best option. There have been many issues with the STS, XTS CTS, and ATS radios.
Most problems relate to XM radio, but the issue you mentioned seems to lean toward the "replace it" path.
Best to check with a dealership to see if there is a recall.
Posted on Dec 07, 2012
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Posted on Jan 02, 2017
SOURCE: Aftermarket Radio Problems
Take the connector out of the radio for the speakers, measure from chassis ground to the negative of a speaker, if you get 4 ohms,,,8 ohms something like that, then I believe that the negative on the radio for each speaker is not to be connected to chassis ground of which the speakers are, if you got the resistance to ground i mentioned before. Most all car radios today have the 2 leads going to each speaker, just because it may say - (minus) on the speaker doesn't mean ground. So, if one side of the speaker is grounded you have to remove it from ground so nothing is grounded. If caddy only has one wire coming from the speaker, your will have to run a single wire probably to each speaker, but check what I said before. I will check mine tomorrow and let you know. I have the same car. I still have the original set up.
Posted on Feb 22, 2009
if its factor bad radio is fried same goes with after market radios the only solution with out spending money to find out is to find a good used factore or get new after market your choice
Posted on May 20, 2009
go to a repair shop and pay them 10 bucks to print it out for you. most shops l will do this for you
Posted on Feb 09, 2010
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SOURCE: cadillac sts wire diagram
1994 Cadillac Seville Car Audio Wiring Color Codes
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Gray/Black
Car Stereo Antenna Trigger Wire: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 5 1/4′
Car Audio Front Speakers Location: Doors
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: 6′ x 9′
Car Audio Rear Speakers Location: Rear Deck
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue
Posted on Aug 18, 2010
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