10 Disc CD changer Install

[JS- 544-123-240-70-60-T5s]

Hi Volvo Appreciators, I bought a used ten CD changer to install in my 2006 S 60 2.5 T with a 650 HU. It comes with a mounting bracket and the DIN wire. I don't know where the factory installs them and what other connections to make. Could it be installed wherever I want like the back of the center console or must it be in the trunk?. Your advice would be welcomed. Thanks John S