UBERS4

Tried it, no difference. The noise does seem to worsen when the headlights are turned on, thus I would have hoped the noise filters would have fixed the issue. Could it be a grounding problem?

I didn't drive the car all winter, hence why the issue hasn't been able to be taken care of until now. Like my recent post said, please disregard the original theory. I have sourced that the sound is not coming from the HU but rather from the speakers. I do have a factory amp and this is why we thought the ground loop isolators (noise filters) might be able to alleviate the problem. The noise is very faint, but enough to hear at low/no volume. It ONLY came about with the installation of the Avic unit. I never had a problem with the OEM unit.

Ok, so the issue is still present. We installed ground loop isolators to try to correct it and the noise still seems to be there, it's better (at least I think it is) but there. This problem started happening once the Avic-D3 headunit was installed and I never had the issue with the OEM headunit. Also, the noise DOES seem to get louder when I accelerate, unlike what my initial post says. It is not however coming from the engine. Any help would be much appreciated. My installer is stumped as well. He told me not to worry about paying for anything until we fix the problem.

It is the unit, I sourced that. So, if it's the fan, I'm assuming it's normal?

When my Avic D-3 HU is at low volume or off, there is a slight "hissing" noise that seems to emit from either the unit or a speaker. I searched the forum but unlike most people who have had this issue, the noise does NOT get louder when I accelerate. I'm puzzled on what it could be. FYI, I have a 2005 Audi S4. Thanks

I'm bringing it to my audio shop tomorrow morning. But, I'l try and pull it out and see if that fixes it. Thanks!!

I've been having a few issues with my Avic D3 installed in my 2005 Audi S4. First off, when driving, it will just shut off and power back up immediately. It happens at random moments for no apparent reason. My only loose end is that my radar detector is hardwired to the radio fuse but the radar has no issues. Now today, the unit shut off and did NOT come back on. It will not start up upon startup of the car and the reset button does nothing. I went through every fuse and they are all working including the radio fuse. Why would it all of sudden shut off and not come back on? Than

I've gone through each of the threads and even though everyone claims how easy it is, I'd rather just have someone with knowledge do it. I don't like messing with the electronics stuff. My main question is why it worked perfectly one day, and not the next?

Ok, I am not too knowledgable when it comes to ICE so I know someone out there will be able to help point me where I need to be to get this fixed. I just got my Pioneer AVIC-D3 unit installed. My installer made it clear that it is not possible to play a DVD in drive as the GPS knows the car is in motion and will shut it off. He told me that in order to do it, you need to run a separate DVD player and mount a "switch" to trick the GPS unit. I opted not to do the additional DVD unit but mounted the switch anyway so I could have it good to go when I did decide to tget the second unit. S