Help a technologically challenged X5 owner - ipod

[Bimmer4125]

Hello all - please help - I have done all the reading and video watching on the websites about this topic but need a laymans explaination and discription - I have an ipod Nano. I have a 2004 X5 4.4. It has the Business class single CD player - no nav. I need to link the two (CD/ipod)together with a system better than the FM transmitter thing. Can someone please explain to me the whole "DICE" thing or other systems available? Installation is not an issue, but what exactly I need is. I would like a permanent ipod dock with no cables running all over. I have researched it, believe me, but it has just confused me. Technological overload. (pretend you're explaining this to a semi-retarded elderly blind three legged dog)
Thanks - John