Motorola Droid Bionic :: Wired Headset Will Not Work In Bluetooth Environment

I have found it almost impossible to get a wired headset to work on my bionic when in my car (which has built in bluetooth, and which is bonded to the phone just fine). The only way I can make the wired headset take precedence over the bluetooth, and/or the phone's speaker phone, is to:

1. Make a call in the car (any mode).
2. Plug in headset.
3. Click on the phone's speaker icon (headset works for 1/2 second before sound reverts to bionic's speakerphone).
4. Unplug and plug the headset into the bionic, often 2 or 3 times.

Obviously this sucks and would cause a terrible accident if one were driving and doing all these procedures. I have read every documentation on the phone to no avail. I have called Motorola twice, to no avail (and was hung up on by the tech), and called Verizon tech, who also hung up on me.