iPhone 3G with Talk and iPod over Speakers?

[Zabumafu]

Well I am turning 16 on 8/7 and I will be able to drive finally (dont worry I got a 99 on my driving exam I should be fine..) and I want to be able to use my iPhone 3G as an iPod and maybe even handless talking.

I have not done much modifications as I am out of the country but this is what I am looking for:

A device or just some modification to allow me to place the iPhone in my car and allow it to do the following:

1.Play Music
2.Use iPhone Through Speakers (Not just speaker phone)
3.Charge
4.Stay In Place

I have a little stand which I plug into the outlet and it lets the iPod play music over a radio frequency and it even charges it but it sucks. It charges it well but the music quality is horrible and it bounces around and its just not worth it. On the old iPhone V2 I saw that you were able to hookup the dock that came with the iPhone V2 and it would play music over the phone and even allow for talk.

Is there anyway to do this with a F150 and to allow charging?