Adapter for corded in-car Audio and Mic

[DLCPhoto]

My car does not have Bluetooth built-in, and I really don't want to pay to have one installed. I'm trying to do it myself using corded non-Bluetooth devices.

I assume that the 3.5mm jack would support regular wired headsets, but correct me if I'm wrong.

What I want is an adapter that I can plug into the 3.5" jack on the TP2, and have the audio routed to my Stereo, and run a microphone to the visor above the driver's seat.

So basically, I'm wanting to separate out the connection for voice from the connection for the audio.

I've been checking Radio Shack and other similar places, but can't seem to find just what I'm looking for.

Any leads appreciated.