Cracking through external speakers
Like a few others, I get terrible cracking through external (powered) speakers, specially when using the audio line out in the cradle. I read something about shielded speakers, but afaik the Bose Companion II and Yamaha YST-MS55D are shielded. It happens every 20, 30 or so minutes, it is short but extremely loud (also with volume at zero) and scares the crap out of me every time it happens. Even turning off the speakers immediately after the cracking starts does not stop it. Whether or not the cradle is hooked up to a power source for charging does not make a difference. The reception level of the phone has nothing to do with it, I have the full five bars. Neither has the availability of a WiFi network, and the iPhone is not checking email.
The answer that was suggested is to use the iPhone in Airplane mode. But what good does that do when you want to be able to receive calls? After all, I am not in an airplane. Well, it is not the answer, because I tried it and the problem persisted while in Airplane Mode!
I am frustrated, because the audio jack in the cradle is useless. The problem is not tied to a certain model or brand speakers. So hence my question again, does anyone know what the heck causes the cracking and what can be done to stop it?
Jan
iPhone, MacBook, Mac Mini, iMac, Cube, Newton, etc..., Mac OS X (10.4.9)