radio buzzing noise

The problem is a defective "rear audio control module" located under the cup holders in the center console. This now know after watching my dealer chase the problem for weeks on my 2007 Z71 Surburban. E-mail for details.

you have a speaker wire that is touching the fire wall, (metal that seperates engine space from the cab) or it touching metal that touches the firewall. I.e. doors to hinges ect. its def the speakers b/c the sound comes through regardless of the radio being on. as far as the whole 1900 rpms, the wire is probably barely touching the metal ground, and when the vibration of the engine changes with rpms, the wire loses contact......wherever it is, its the wire itself, not the insulation, (obviously) good luck, get a chiltons if its a stock radio, the wiring schematic is in that bitch fo sho

ground problem.ground wire is loose.

1pristine... I forwarded this thread to the dealer currently working on my suburban with the same problem. We have been chasing this issue for nearly a year. Do you have anymore info to offer that I can pass on to the Chevrolet repair guys?

I had this same problem on my 07 suburban, it took 2+ years to figure it out and the noise got worse over time. they fixed my rear audio control in 2011, now the noise has started again---I have called GM insisting on a recall of a bad part--you all need to do this so they recall the part. one person isn't enough

I have the same problem on my 2005 Z-71 Suburban and wondered why the dealer insisted they did not even hear the noise and when I picked it up had a few choice words for them as it sounded louder than ever and finally was told it could take "forever" to find the problem. I am trying to sell my car and cannot with this whirring sound. What can we do???

Heading to social media to try to get Chevy to respond to this problem and I suggest you all do the same: Chevy on Twitter: https://twitter.com/chevrolet# - @Chevrolet Chevy on Facebook: https://www.facebook.com/chevrolet - just message them as well as leave your comment on their wall.

Dont sell your car for this petty fault. Just under the central tray is the main audio connector. Just disengage the plastic safety lock to disconnect the the radio. Slip back the lock whenevr you need to hear some music- negligible hiss sound when engine is off.

My 2007 Suburban LT2 has the same problem with a buzzing noise in the rear speakers that matches the engine RPMs, even when the radio/sound system is turned off. I am tired of listening to it, so I guess it is time to go down the frustrating trail of troubleshooting. Has anyone found any more details on the easiest way to fix this annoying problem?

Replace the rear radio unit. I found that fix through the forum. My dealer insisted the problem was the amplifier; but to appease me he disconnected the rear radio unit and sure enough the noise was gone. I replaced the unit and haven't had a buzz, whine or annoyance at all for several months.

I will remove the rear unit and will report soon

Disconnecting the rear audio control does not help to shut this sound.

Try This - Pressing the upper corner of the rear audio control temporarily stops the noise in my case - http://www.archivedsites.com/cgi-bin/mt/mt-search.cgi? search=TAC&IncludeBlogs=6,11,28,3,7,12,14,10,23,29&limit=8&page =132

I have a 2007 2500 HD LTZ, all speakers had a humming noise and turn signal noise also came thru speakers, had this problem for a couple of years, I found a couple of issues that caused this. Underneath center consul there is a wiring harness with a large connector and then connects to the Bose amp, I removed the tape / sheathing on the dash side of the harness connector and found a broken wire, also in same area found 2 wires with outer sheathing slightly rubbed off causing wires to touch. These 3 issues caused havoc with the speakers, radio and turn signals! Repaired these 3 issues and everything is working properly again with no noises.

The problem its the speakers. You need to replace all because the border ring are destroyed. Check that out. I buy new speakers and everything goes fine now. The heat kill those speakers because the outside ring are built in foam and don't resist the temperature

2007 LT...Had exact same problem. Noise at start up whether radio on or off, rpm related noise with radio on, noise when using turn signals (up to 2000 rpm) with radio off. I read all the blogs. Cheap as I am, decided to disconnect rear radio control. The noise stopped & front speakers were fine. That eliminated an ignition issue. I sprayed DeoxIT on radio control connection and blew out with canned dry air. Problem solved. Bottom line is if you are getting noise through the speakers there is either a grounding/connection problem or alternator noise suppression issue. Wish I had been as lucky with the $3K s**tbox transmission. The dealers want to sell parts and it's not profitable because of "book hours" to chase the problem. They mostly have "Techs" ...read that "parts changers", not mechanics. If it's not in "the book" MOST say "forget it". If it's not in warranty you are much better off with an honest and knowledgeable independent shop if not doing FIY.

I've had the whinning noise since I bought my 07 Tahoe LT . First started in winter when cold. Dealer had it at least a dozen times and finally replaced the audio board under center console and it fixed it for a few years. It's now doing it again and of course it's out of warranty now. It's intermittent but when it happens I bang on the passenger side rear top corner of the console and it stops. Has to be a bad connection in there but not sure how to access the damn thing. Any Utube videos out there showing this process??

I have the same problem. Just found this answer on Tahoe board. A few people said that it worked and cost $80 on Amazon. Attaching screen shot

Took my Avalanche to Daves Stereo shop in Rochester ny. Service technician knew it was the amp. Says Gm knows about it but acts like they know what the problem is so they don't have to recall thousands and thousands of defected parts. They fix them by sending them out to be repaired. About a $ 300 fix.

all of us who has the same issues need to complain at chevy and hopefully we get a recall.

I have reported this multiple times to GM about 6 years ago. At that time I suggested others call as well. I was able to get the interior door handles replaced this way—the “chrome” wrap was coming off and cut a couple fingers when opening the door from the inside. I’ll keep watching for a recall on the radio as we’ve already had the rear audio control box replaced and the noise started again

This is all fine and dandy, but I have a '99 that's doing this, and I have no rear stereo controls. Is there still a control under the center console?

same problem 2003 gmc yukon aftermarket deck stock bose, unplug rear audio control buzz went away but lost rear speakers. reconnected plug slowly found if done at angle speakers came back with no wine check plug for power found orange wire had power cut it reconnected no wine had rear speakers. never bought interface for rear audio when i put in aftermarket stereo so it didnt work anyways

Chevys have had this problem for years. I found that if a diode in my alternator was down by just one or two (often caused by booting someone improperly), my stereo would buzz (wine) with fluctuation of RPM. Your altornater may still show that it is sufficient to keep the system charged and would not show up on a test but was just week enough to cause a frequency disruption. So one solution back in the day was to add a filter to the hot wire feeding your stereo. I think it was mouthing more that a capacitor to help regulated the amperage to the stereo. Talk to someone that use to install stereos in 80 model chevy trucks. They know about this. The thing use to only cost about 5 bucks. So in short, the problem offer is the feed coming from the alternator work hard to charge due to a weekend batteries or the altinator itself has lost a small amount of its ability to charge the system without causing an electrical feed is he. It like a feedback loop scenario. You can see this type of frequency if you know how to use an Osiloscope.

Add a filter (capacitor) to the hot wire feeding your stereo. This will eliminate the feed caused from your altinator as it charges and cchanges RPM.These can be purchased at most aftermarket stereo installation shops. Sorry for the above typeos and longbeplination. I'm old an screen is small. lol

I solved the radio/speaker noise problem with a simple fix. On my 2007 suburban. The noise would come thru the speakers, even with the radio off. The sound changed with the engine rpms, I installed a new alt. and added capacitors,filters etc. Finally,I found where the noise from being generated,maybe by accident--while tapping the inside kick panel by the passenger door--the noise stopped when i tapped that area. One or more of the connectors in the passenger inside kick panel,where slightly loose. I unconnected and reconnected all of them back together to make a better,solid connection. The noise was eliminated and forever. Thank goodness! No more of this particular problem, those weird,annoying speaker noises--for as long as owned the vehicle--for several more years.

My 2003 avalanche had this problem. I decided to install a new radio to hopefully correct the problem. While trying to get the old radio out, I realized I was in over my head and simply put the screws back in. All I did was take out the screws and then put them back and the problem went away! Not sure if the screws are part of the ground or if I simply moved some wires unknowingly. All I know is the wining has disappeared.

I am recently noticing this issue as well. The exact sound in all speakers when radio/BT/USB is off or on. I bought a 2007 GMC Envoy (with just under 70,000 miles) a year ago and it had an aftermarket (JVC) radio in it. The faceplate quit working couple months after (The reset button worked on the unit behind the plate, just would never power up). I called JVC and they told me it was a 10 yr old radio and recommend I just replace it. While I couldn’t afford it until now (at about 99,000 miles), even though the radio didn’t work, when my seatbelt dinger went off it was super loud and whining in the speakers, sometimes all of them, just the front ones or just the back ones, and sometimes super quiet no whining. Now that I have a new radio I hear it the same way, except now it’s just the same volume low whine constantly and it’s changes slightly up and down with RPMs, but now all the time cuz the radio has power? I guess? Idk but it is super annoying. Should I go back to the place where it was installed? Or go to the dealer? Or what do you great knowledgeable people here recommend? Please help! (I am gonna try rattling/“kicking” some areas and see if that does anything before I go anywhere)

It’s called engine noise. U get it when the harness is bad. Take it to a sound shop they will fix it for u. It could be the radio is cheap or the bad wiring harness because someone hooked it up wrong. But the sound shops are good at fixing it.

I had this problem in my 2005 Z-71. If you pop out the square plastic piece that is your cup holders you will see a wiring harness. There is metal on the floor board along with assorted metal pieces down in there.. Once you pick it up from touching any metal pieces the noise will stop immediately! At least that was my result. There is a plastic piece that gathers these wires with a plastic tab about the size of an ink pen tip that inserts into a hole that holds the harness in place...problem solved. This high pitched whirring/buzzing drove my wife and I up the wall for over a year, what a relief!

I have the same problem but it only happens when the speakers are on and when I turn the key it makes a popping noise and it also makes a turbo like whine in the passenger rear speaker