I have a 2105 Buick Enclave with an intermittent audio/sound problem. None of my safety warnings, blinkers, radio, phone, etc. have any audio sounds. On occasion, the sound will return for a short period, then go back off for days/weeks only to return unexpectedly for a few minutes. I have had the amplifier and radio replaced by the BUICK/GMC dealer, but the problem still exists. Since this problem prohits my safety warnings from being heard and my Bluetooth cell phone from working, I have major concerns. Are you aware of this issue and how to resolve it? Please respond.

This sounds like a wiring issue or maybe some bad connections. The Buick/GMC dealer should have figured this out before replacing anything.

Does the radio display stay lit up while this is happening?

Yes, the display remains "ON".

Since the dealer has replaced the radio and amplifier, the issue is likely in the wiring and connections between them. Next steps would be to measure outputs from the radio, inputs to the amplifier, and outputs from the amplifier while the radio is being commanded to play music at a reasonable volume.

Thank you for your response concerning the checking of the wiring and connections. I will check with the dealer to ensure this approach is being pursued.