Help-all audio goes to new Jawbone ERA instead of just phone calls

My old BT earpiece that I used with my iPhone3GS simply fell apart so I bought a Jawbone ERA. Now all the audio goes to the ERA instead of only the phone audio (which was how the previous Palm Treo earpiece worked). Any suggestions on how to get my music & GPS directions to go to the iPhone's audio jack and/or speaker instead of using the BT earpiece as its only output.

iPhone 3GS, iOS 6, Jawbone ERA earpiece, Dual Electronics XGPS150A Universal Bluetooth GPS Receiver.