Hi Rick, welcome to THE JAGUAR OWNERS CLUB. Unfortunately you will always have the alloy wheels binding/sticking to the hub alloy and metal don't like each other. With all my cars Jags, Mercs etc I've always used the copperslip trick when placing the wheels back on. Although I am an electrical engineer I cannot assist you with the iPod lead fitment having not attempted it although if you do a topic search on the site I have read several members posts on how they achieved it, I cannot remember now. I changed my head unit to a head unit that accepts SD cards and plays mp3 but that is on the XKR don't know if its achievable on the X type.