Hi. Just joined after buying Phil's white VR4. All seems OK but, there is a weird ping sound in the cabin which can be a long or short note. I have tried all the combinations in the search box, but, got nowhere. The best description I can give of it, is that it sounds like one of those children's metal triangles which I (cos I'm old) used to have at junior school. The ping is not regular, can be long breaks between pings, or can ping quickly. Sounds daft, I know. I have tried to ignore it, but, it's becoming a pain. Yes, I know I can turn the stereo up, but, as always, I am concerned that this could be something serious. NB - This is not a joke! Can anyone help? I am hoping that it might be something to do with the aircon (as the ping is a bit similar to the aircon setting noises).