lol it fucks with everything... my homie had a 12 disc changer in his trunk and everytime his phone rang it would pick it up, playin some loud ass noise over the music
my phone does that too n i got a curve...its funny when you have your email hooked up to your phone n siccness email hooked up to your email and someone private msg's u and your phone is goin off while u get the msg at the same time being logged on....sicc-ness..
Mine does it too it will interfere with anything that has speakers and like the guy above me said it has to do with the frequency that the phone operates on.