CD changer, wiring to boot

[Ashstuff]

Hi Guys,

I am gonna get a Sony 6 disk CD changer & 'Connect 2' adapter, for my 2001 A3 concert tape HU no CD cable in boot cubby hole.

How long does the cable need to be to go to the boot?

Where should the cable be rooted and how do you get access to it? i.e which panels need to be removed and how do you remove them?

Thanks for all you help the other week with this one ' http://www.audi-sport.net/vb/showthread.php?t=36163 ', love me new car

thanks

ash