Whats wrong with the radio trasmitters that were mentioned before? They work perfectly well and are about £20. They just fit to the end of your ipod and can be run from battery (phone, or seperate. Or via the car) They also take up no room and look nice too.
I am a bit grumpy though and sick of seeing annoying threads like, "How do I poo properly?" What car should I buy (p.s. I won;t take your advice anyway it's just a good way to show I can't look at reviews myself or test drive a car, and to show I have lots of moneys and lifes!" and my usual fav which is "I'm a little weener who has been dumped/loook at my amazingly hot/fake gf"
Well thats my rant over.
p.s.