[bkesler]

I have an MY2007 and iPhone4 and have not had any trouble. Did a search on Apple support and this seems to be a known issue with the iPhone and could possible be due to decreased signal while in your car. See the following Apple thread:

Apple - Support - Discussions - Popping/Clicking noise when making ...

and also

Weird Popping/Clicking Noise during Call - MacRumors Forums

Hope this helps.

 

[bkesler]

Possibly, but from what I have read, consensus is that it happens when there is GSM interference, which could be coming from car. I would try opening the moon roof and setting the phone on roof of car (obviously while the car is parked) and see if it still does it. That would at least give you an idea as to whether or not the car is causing signal interference. If it still happens, then I would try to test it with another iPhone 4. BMW recommends using their cradle so as to take advantage of the cars external antenna. Unfortunately for us, they have not released a cradle for the iPhone4 Also, does this happen if you make a call from inside the car not using bluetooth (with engine running)?

 

[bkesler]

Have you noticed whether it makes any difference if the engine is running or not?

 

[bkesler]

I see a few of you got used Cars and programmed your phone. This is for my wife's 2005 E60 but I cannot find the PIN# to Sync my Iphone. An old thread showed the unit in the car to find the Pin called the PK. Mine shows a sticker but and says PK but there is no #!! There is an esn and other numbers. Which one is used for the PIN#? How many digits is it supposed to be? Thx!

I sync'ed both my wife's and my iPhone4s to my MY2007 and don't remember having to use any special number. I believe just picked a 4 digit number on the iPhone, then used same number on the car. Remember that only a certain number (4 I believe) of phones can be paired with the car, so if there are already the maximum number of devices paired, you'll need to delete some before adding your phone.