Help with Parrot handsfree

[davesimmo]

I was wondering if anyone can help me.
I am going to purchase a Parrot MKi9200 for my Dec 2008 A3
It has the standard 6 disc changer linked to the normal stereo. Concert/Bose thing.
The question I have is, what interface and extra wiring do I need to install this correctly?
Also, do you know where I can get these from.
I refuse to pay Halfords extortionate prices for the fitting kits.
I am more than able to do this install myself, I just need to right bits.
Thanks in advance.

 

[Double J]

I installed my MKI9000 myself but could never get the sub to work.

I eventually splashed out on a kit from just car kits to fit it, now it works like a dream.