My 06 with nav has never worked either. You would think that for their flagship vehicle, Chevy could at least get with Bose and fix this problem.

 

Has anyone talked with Bose? Anyone have a contact number?

 

As the old saying goes:

"No highs, no lows; must be Bose!"

 

I have an 06 convertible with the Bose Non-Nav unit and it works....very noticeable....volume goes way down when I come to a stop. Just like everything else from Bose, I find it more annoying than helpful so I switched it off. Everything is better now.

 

I did one better a few months ago. I have a handheld white noise generator and with the car off and in accessory mode with the radio on, I turned on the noise generator and moved it over different parts of the dash and under the dash. I could detect no change whatsoever in volume no matter how loud I turned it up or where I held it. On mine, it simply does not work at all. It's not just that you can't "detect" it: it doesn't work!

Mike

 

Funny - mine does! Mind you, it doesn't work well; the input shaping and time constant are way off, and in many cases it pumps more than it compensates. But it does do something.
There is a menu option for this; make sure it's turned on (off by default as I recall).
But try setting the radio level pretty quiet and driving in 2nd or 3rd gear, accelerate slowly up to 3K RPM or so then let it back down to about 1K RPM - the radio will be hard to hear as you speed up, then too loud as you slow down - that's the pumping.
If it worked better you probably couldn't tell it was working!

 

It's possible that some of us may have different problems then. I just went out and tested it with the blower method and it does absolutely nothing, just like it did with my white noise generator. If you press the little music note button on left side of the nav, you can confirm that it is set to on, but it does nothing in my case. I have an early 05 VIN so it is possible that it wasn't working at all on the earlier cars and then due to complaints, they fiddled with it and got it working too much on some.

Just a guess.

Mike

 

not seeing a milion dollars doesn't mean it doesn't exist

looooooool

 

I would tend to agree with this. I do notice some changes that are very subtle but it seems to depend on what kind of road surface I am on. The rougher asphalt type roads is where I notice it most.

I do agree that it probably could be more noticeable on all road surfaces.

 

2006 Vert with Bose/Nav and mine definitely works. There is a noticeable change in volume when I put the top down. There is also a much wider variance in volume when I'm moving or stopped with the top down vs. with the top up.

 

As has already been mentioned here and on countless other threads about this, the Bose system upgrade does not have a speed/volume compensation feature on it. It has the AudioPilot system and it has nothing to do with the inclusion or exclusion of the NAV unit. All base units do have the standard AVC circuit.

The affect of the Bose AudioPilot is subtle, at best. It tailors the bass/midrange/treble response to suit the noise levels it detects in the cabin. At higher speed/more noise levels it will decrease the bass and boost the midrange and trebles. If you already have your unit set up for high levels of treble and midrange, there is no discernable difference in the perceived frequency response because there's nowhere the AudioPilot can go. If your settings favor heavy bass and your high frequencies are toned down, you should be able to hear some change in the sound.

There was a software change in the Bose head units about mid 2005. I had mine replaced last year and the new unit shows the equalization settings by name, rather than number. It also now gives me three levels of adjustment for the AudioPilot, rather than just on or off. This change was, I think, short lived since later units no longer show this upgrade. Regardless, the AudioPilot is still marginal.

I have the same Bose AudioPilot circuit in my 2006 Audi A4. It doesn't work any better there than it does in my C6. At least Bose is consistent.

 

I have a C6 March 06 (L2) Build Date and my volume control doesn't work either. However, I'm practically deaf so I keep it on loud the few times I turn the radio on.

The intriguing thing to me is the auto A/C. I find the Vette A/C very weak for Louisiana climate. My wife's Caravan can cool the socks off the Vette A/C. Sometimes the recirculate comes on and sometimes it doesn't. It takes lots of speed and miles to get the thing cooled down when it is 95 and has been sitting all day in the sun. This is more annoying to me than the auto radio volume.

All that said I love my machine and never plan to trade it. Just drive it and get a lot of sheer fun.

 

We haven't had weather hot enough yet to test the capacity of the A/C system, but the "Auto" feature is miles ahead of our C5. The old car could best be described a "Semi-Auto", I'd need to start out set at 66' and end up (winter) set at 84'. I had the sysyem worked on several times and virtually every component replaced, no help. The new car never needs to be set lower than 69' nor higher than 73'.

 

I just bought the used C6 12006 and thought I was nuts until wife rode with me and said that it actually works in reverse. The quieter the ambient noise, the louder the music goes. Geez!

Also having problems with dim switch for console.

 

Mine works perfectly. It works in 6th gear ONLY and it is controlled by the noise it picks up on the mike. I have NAV & 6 disc CD player. I also have the bOSe system.

Elmer

 

I have an 07' with the Nav and the Bose system. I didn't think the audio volume system worked either, that is, compared to GM's stock system. But, the other day, while exiting off the highway, I did notice, that, the volume did get lower, not much, but, some. I said to myself, "Holy S#%@" it does work! It's very subtle in the way it works. With a car like this, it's almost useless to have it. IMHO.

 

This thread is 4 years old! Don't you think he either fixed it or gave up by now?

 

My 06 LT3 with nav works fine!

 

If you do a search you will find a fix I did to mine (Bose, non-nav) a few years ago. The problem as I see it is the microphone that the AudioPilot uses to pick up ambient noise (unlike the SCV in the old radios, which I loved, AudioPiot tries to sense ambient noise and compensate) is mounted near the drivers right knee in the kick panel.

I moved the microphone to the panel just behind the center console, and my volume is nicely compensated (and relatively quickly, although there is a slight lag that probably has to be there else it would be changing to constantly).

It was an easy mod, although since I wanted a factory look I had to buy a new cashmere kickpanel so I could get the microphone grille ... (and as a bonus it came with a new microphone ...)

 

I have the same system so I will try it in 6th gear. Thx