Newbie here, I hope you can help and Thanks in advance.

Scenario: Had a Z110BT installed into my 2009 C6 Vette, works perfect until the car sits outside in the GA sun.

After the car sits at work and I go home the unit will not produce any sound until the car cools down. It is repeatable and very consistent.

The screen will display and I can move from menu to menu, put either the mute or ATT button will display in the upper right hand comer until the car AC cools off the interior. It has the latest firmware installed. (not the Z120BT upgrade)

I had the unit replaced last week and the same thing happens.

If anyone can help I would be grateful!

sounds like you got a dud.

Thats why I had the first one replaced, second one same problem.

I think you're right about it overheating. These headunits are technically mini computers and will react as such when subjected to heat/moisture/shock/monkeys.

I haven't personally installed one in a Vette.... But given it's cramped nature, I bet it's pretty cramped behind the dash.....

Is there anything blocking the cooling fan on the back? If at possible, give it as much breathing room as possible....

I know I make note of clearing all the wires and such from the fan when installing mine....

We have it pretty hot here in Covington, La. And I haven't come across this issue since the earlier Z's, which they released a "freeze fix".... in which all they did was turn up the fan speed...

Maybe even try to kick the fan speed up a notch or two in TESTMODE???

How is it wired into the bose? You should be using the proeouts on the deck into the proper interface, not speaker leads

Are u using the built-in amp or an aftermarket amp to feed your speakers?

Some more info, this was pro installed with a very good shop in Atl. they have replaced the unit one time already.

All RCA connections all Bose speakers removed.

Here is a list of the items installed,

Sound Insulation and dynamat, AVIC Z110BT, Focal K2P, Custom A-pillar tweeters, JL Audio sub, CDT Amps. Custom amp/sub rack.

Also I will so a search on fan speed, but the unit never shuts down after the car is cooled. Only after sitting in the sun for a couple of hours.

Thanks and please reply if you have any insite!

Does the sub keep playing?

You could always plug the RCA'a into something else while it's occuring, home stereo or something.

I doubt it's the radio, if it was it would effect more than just the sound, and give a temperature warning and the deck wouldn't boot up.

Does the sub keep playing?

You could always plug the RCA'a into something else while it's occuring, home stereo or something.

I doubt it's the radio, if it was it would effect more than just the sound, and give a temperature warning and the deck wouldn't boot up.

Ok, I will take the car to work today and let it heat up. I will start the car, verify the problem.

Turn turn the car off and dissconnect one amp at a time to see if that gives me any clues.

Ok, I will take the car to work today and let it heat up. I will start the car, verify the problem.

Turn turn the car off and dissconnect one amp at a time to see if that gives me any clues.

It probably won't, as it could also be the amps overheating.... Unplugging the RCA to the amp won't tell you anything in that case....

Being that the HU is displaying ATT in the corner while this is happening, would make me think that it's not the amps that are over heating...

hi

i have this same issue,

i have a 350z and installed in spring and its been doing this right off the bat. its the z110bt software/unit.

the 350z has a really cramped space behind it.

for me when i turn up the volume beyond 32 it seems to shut off on some songs(same way with no sound but screen funcionality), but when i put the a/c back on it turns back on, or at least has in the past.

im thinking of uninstalling it and putting something so the fan has air to breath on the back but i dont know exactly it will be/or if i will be able to do it sucessfully

i am interested as well to any solutions available

hi

i have this same issue,

 

i have a 350z and installed in spring and its been doing this right off the bat. its the z110bt software/unit.

 

the 350z has a really cramped space behind it.

for me when i turn up the volume beyond 32 it seems to shut off on some songs(same way with no sound but screen funcionality), but when i put the a/c back on it turns back on, or at least has in the past.

 

im thinking of uninstalling it and putting something so the fan has air to breath on the back but i dont know exactly it will be/or if i will be able to do it sucessfully

 

i am interested as well to any solutions available

Do you happen to know if any of your vent ducts run directly behind your headunit? Since your problem is fixed by simply turning on the A/C, the ambient air in front of the HU's fan might be cooled just enough if the duct is close enough.

Being that the HU is displaying ATT in the corner while this is happening, would make me think that it's not the amps that are over heating...

Sometimes it's the ATT icon sometimes it is MUTE. You can hear the sound VERY VERY light. After driving about 20 min either the (ATT or MUTE) icon turn off and on fast and when stays off. Music starts. I will try to shoot some video of this and post.

thanks

Sometimes it's the ATT icon sometimes it is MUTE. You can hear the sound VERY VERY light. After driving about 20 min either the (ATT or MUTE) icon turn off and on fast and when stays off. Music starts. I will try to shoot some video of this and post.

 

thanks

In that case, are you sure it's not a problem with the mute input/wire on the unit ?

Sometimes it's the ATT icon sometimes it is MUTE. You can hear the sound VERY VERY light. After driving about 20 min either the (ATT or MUTE) icon turn off and on fast and when stays off. Music starts. I will try to shoot some video of this and post.

 

thanks

 

In that case, are you sure it's not a problem with the mute input/wire on the unit ?

First thing we looked at. thanks

I had this system installed this past spring while I was stationed in Fairbanks Alaska and I had the same code come up (ATT) in the upper right of the screen. When it would happen my music would fade in and out and if you would shut the truck off and restart it would be fine. It only happened a couple times and since I was in the process of leaving I got busy and never had a chance to get it back to get it checked out. Plus it really only happened a couple of times over the course of a couple/few months. The weather was not hot, maybe 50 degrees at most and so I do not think it was over heating and now I am stationed at FT Stewart Georgia and it is happening all the time and so I am thinking like the poster here that it is the heat. If I go out in the morning I have music, but after my truck sets out all day in the sun and I get in and start it, until it cools down (about 10 minutes or so) I get the ATT code in the upper right of the screen and the music is very faint and fades in and out. After the truck cools down it will come on and all is good to go.

I have no amps and the only thing I had done to it is speakers. I had the stock speakers replaced with Rockford Fosgate Punch speakers. I have not even had the bypass completed in it because I cannot find anyplace that will do it and I am not an electronics type of person (Not that generation).

So if any of you out there know what might be causing this let us know please. I am really glad it is not just me. I read a lot from this sight before I bought this system, but wish I would have read some more on it when it came to some of the stuff you can do with the 2 systems under this one, cause they sound a lot easier to work with.

Thanks Greg

The ATT is not a code, it is the volume mute function. Do you have your steering wheel controls functioning with the unit? Regardless this is likely an instal issue and you should have it looked at.

I do not have the steering wheel controls on my truck and so I am just thinking I am going to find a place to take the truck too and have it looked at. I am wondering though, does anyone think this might have something to do with the MSN mod? Nobody as said anything about looking into that addition? Just a thought. I know I have it, have never called to activate cause it was never aval in Alaska and I just got to Georgia a few days ago?

Also wondering if I should have listened to the tech at the stereo install place and went with the Kenwood? But I did not want any knobs...dumb@#& me and they said the Kenwood had the Garmin GPS software so much easier to use...if we could only have bave 50% of the "if I would have only listened to the person doing the talking"

Anyway any other thoughts or if anybody knows of any trust worthy shops around Savannah GA to have this looked at let me know.

Thanks,

Greg

It shouldn't have anything to do with MSN. This is likely an install issue somewhere like a crossed wire. You really need to have it looked at.

The ATT is not a code, it is the volume mute function. Do you have your steering wheel controls functioning with the unit? Regardless this is likely an instal issue and you should have it looked at.

If this was a lose wire problem, it would happen more often. This never happens when it is warm or cool or cold out.

Only when it is hot.

I am going to have my install shop look at it this week one more time and when either live with it or go with a different brand.

Thanks for ALL your replys.

After they look at it let us know what they say and what you are going to do if you would please. I just got down to GA this week and have no idea where to take my system to to have it looked at and so the more I know about the problem when I do take it there the less I can be bent over the log if you know what I mean.

Thanks again everyone for all the help and advice

Greg

gwitz Fairbanks is my home town, I grew up there until I was 18 and joined the Marine Corps.

Sorry to hear you had to spend time in that soul-sucking place.

install remote starter to cool car before you drive jim