Need to change factory cd player in my Nissan Almera SE 2005...pls HELP ?

Hi,
I need to change the cd player in my Nissan Almera 2005 (55), had been to Halfords but they cannot do it,
The CD PLAYER is attached to the A/C, RADIO and the MoNoChrome Screen, so detaching the cd player will disable everything.
need HELP to change the CD player with the A/C and things working.
Can Advice where I could go.....Pleeeaasssee
Thanks