(G) Connecting an Ipod to Punto Mk3

Anyone know the best way to do this without changing the factory fitted stereo?
Ive got a Griffin Itrip but its rubbish, is there some sort of lead to go from Ipod to stereo?
TIA
Louise x

personally id simply get a £3 mp3 transmitter from eBay - the hong kong import ones are great - the itrip is crap - over priced rubbish - £3 jobby from eBay is all you need.

I got one and have been driving all around europe for the last year - used it every single time I was in the car and its only just started to play up, not bad for a couple of quid!