So i have the IP5 and in my car I don't have a USB port. I have a 3rd party car charger which has two cables the 30 pin goes in the phone and the other end goes in the Aux port in the car. so it serves dual purpsoe of charging and playing back music through the Aux. So now with the IP 5 i cant us eit coz of lightning connection. If I buy the lightning to 30-pin adapter will I be able to play it using the existing 3rd party charger/aux player cable. Its quite pricey the lightning adpater, any cheap alternatives?