I use a Bluetooth receiver for playing music from my iPod works great for me, a bit of Velcro and it tucks up under the heater controls
http://www.ebay.co.uk/itm/7dayshop-Bluetooth-Audio-Receiver-Adapter-Ref-BTR006-/400449362409?pt=UK_iPad_Tablet_Accessories&hash=item5d3ca459e9