Iphone and 06 saab 93 integration

I have a IPhone 3gs and a saab 93 "06" was just wondering the best solution
to integrate the two...
I definitely want to be able to play the music on the phone threw the
stereo and would like to be able to use the hands free on the car aswell however
it is not essential... also to you stock the dashboard mounts for the
IPhone so it would charge simultaneously? I would also like to be able to do
this through steering wheel controls and standard stereo on the car
I was just wondering what you would recommend for this as i would be
looking at spending on the solution shortly.
to integrate the two...
I definitely want to be able to play the music on the phone threw the
stereo and would like to be able to use the hands free on the car aswell however
it is not essential... also to you stock the dashboard mounts for the
IPhone so it would charge simultaneously? I would also like to be able to do
this through steering wheel controls and standard stereo on the car
I was just wondering what you would recommend for this as i would be
looking at spending on the solution shortly.