Looking for In-line dock connector charger or dock connector splitter iPhone 3G

Hi all,
I am looking for either a dock connector charger with a male & female connector, or a dock connector splitter to be able to charge my handset while using a Bluetooth A2DP Audio transmitter. I know this might not matter in a few months due to the 3.0 firmware, but for now, I have this need.
I like to listen to music while working, and I hate being tethered by headphone wires. My company doesnt want us to stream audio at work as it uses up bandwidth, so I use my iPhone with the adapter to broadcast to a Bluetooth stereo headset. Unfortunately, I cannot use the charger and the adapter at the same time, because they use the same dock connector port. This means, my battery drains at a pretty hefty pace, due to the running application and the adapter. What I need is the ability to have both the adapter and the charger plugged into the phone at the same time. I cannot be the only one with this problem. Does anyone out there have a solution?
Thanks.
---Ken
iPhone G3 Other OS InfinXX AP23-TX