I don't think you can! It only works on the 9-3 from 2002 to 2006. From 2007 the 9-3 had an AUX on the front.
From 2007 the 9-5 had an AUX socket on the front of the radio, but the Denso satnav does not have an AUX connection.
I did fit one, but it was a lot of effort and involved an FM modulator in the aerial connection.