Navigation/radio do not work

Tiny
CRAIGW12
  • MEMBER
  • 2005 CADILLAC STS
  • 3.8L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 131,294 MILES
I got this car a couple of months ago. The first time I started it the radio/navigation worked. Next time it did not. Checked fuses and even swapped radio, still nothing. Any ideas?
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Tuesday, February 4th, 2020 AT 3:15 PM

5 Replies

Tiny
KASEKENNY1
  • EXPERT
What happens when you try to use it? Does it not power on or just no operation? Maybe get a video of what it is doing so we can get on the same page. Depending on what it is doing it could be a wiring issue or something else. Also, when you swapped radios did you get a replacement or just another one from another car? Was it the same part number?
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Tuesday, February 4th, 2020 AT 4:57 PM
Tiny
CRAIGW12
  • MEMBER
Nothing happens. No light, sound or anything. The radio is used, same model and the chances of 2 doing the exact same thing is rare. This car has radio, navigation, DVD and CD. It also has a Bose amp and a Motorola one too. It has to be a power issue. But where do I start?
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Tuesday, February 4th, 2020 AT 5:44 PM
Tiny
KASEKENNY1
  • EXPERT
Okay. That is what I was going towards. I agree that the issue is most likely power. I attached the wiring diagrams which show the power feeds for the radio. We can check the radio/Onstar fuse in the rear fuse block which is under the rear seat. If the Onstar system is not working either then this is where you start.

If not, then we need to check power at the radio and find out if we have a wiring issue. Basically if you have power on the fuse but nothing at the radio it would have to be a wiring issue.
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Tuesday, February 4th, 2020 AT 6:13 PM
Tiny
CRAIGW12
  • MEMBER
Thanks, I will check over the next day or 2 and respond.
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Tuesday, February 4th, 2020 AT 6:18 PM
Tiny
KASEKENNY1
  • EXPERT
Sounds great. Will wait to hear back. Thanks
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Wednesday, February 5th, 2020 AT 5:50 PM

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