Ipod and Blackberry in stock radio?

does anyone know of a module that could connect an ipod touch and blackberry to be able to listen to it on the stock radio? I have read many threads about the PA15-toy one and sounds good... now is there anyone that has connected a similar type deal to be able to connect a blackerry curve and listen to your conversation throughout your speakers? like a handsfree

 

I had a thing you plug into the cigarette lighter, then plug your phone into it and it comes through your speakers. It worked, BUT it had real bad back feed and you couldn't talk because of the echo! My pioneer head unit has BT and it works really good, so you might look into that!

 

i have an alpine that hooks up to ipods and lets you control the ipod via the stereo.

i also have a Aux input that lets me hook up anything with a 3.5mm jack.