Replacing the stero in an 07 S60
 

I just got my S60 and rather than pay the 800 bucks to Volvo to install Sirrus, I went to other sources for answers. What I found out is that the Alpine stereo deck I wanted to use would not work due to the fact that there is not mounting kit and bracket big enough to install. Has anyone else had this problem? Does anyone know a solution for this so I can go and get this done.

TIA
AZV07S60