I want to be able to play my MP3's and Pandora through my car speakers. If I bought the HTC Droid Eris 3.5mm Stereo Coiled AUX Cable (or any other male to male 3.5mm AUX cable) and plugged it in, would that accomplish my goal, assuming my car has a 3.5mm plug? If the answer to that is yes, will the songs pause when I get incoming calls? If I do get a call, will I be able to talk back through my speakers, or would I just need to keep the phone on speaker, or what? (and if I kept the phone on speaker, would that actually work?) Thanks.