No sound from radio

Tiny
ALEXUSB1
  • MEMBER
  • 2007 CADILLAC SRX
  • 193,203 MILES
Radio cuts on and searches like it’s playing but there’s no sound. Also cigarette lighter isn’t working.
Monday, May 6th, 2019 AT 4:10 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,584 POSTS
Welcome to 2CarPros.

Have you checked fuses? Also, there is an audio amp in the vehicle that may not be getting power or is bad.

First, check to make sure the fuse isn't blown to the amp. The left side rear fuse block is located under the rear seat on the left side of the vehicle. The carpet must be lifted up to access the rear fuse block. See Pics 6 , 7 . 8

Here are a few links to help you check the fuses:

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

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

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

If the fuse is good, we need to confirm there is power to the amp.

If you look at pictures 1, 2, 3, 4. They show location of the amp and how it is removed. Once removed, check pin 4 for power (picture 5). Use the volt meter to test or even a test light. If there is power to the amp and everything was connected and no speakers work, the amp is most likely bad.

Do this and let me know what you find or if you have other questions.

Joe
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Tuesday, May 7th, 2019 AT 5:49 PM

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