As above....

I have a 54 plate fiesta with the 6006cd head unit, and would like to be able to connect my iPhone to it to play music. My mate has offered me a 6000cd head unit from a facelift fiesta mk6.5 which has an aux input for £30, so I'm hoping this is a relatively inexpensive way of achieving this without having to go through the hassle of modifying the dash or buying fascia plates.

Can this be done?

Cheers