Installing aux input 06 screw
 

I am thinking about purchasing an aftermarket aux input for my 06 screw. Someone who has done this , I might need a little help. My truck is an 06 screw lariat with a console.The cd/mp3 player audiophile radio . My question is....the satelite unit behind the dash or in the console ? I do not want to make a 3hr job out of a 15 min project. Thanks