Just picked up my new company car, Renault Laguna Dynamique. I wanted to fit a new head unit (Dension MP3) and amplifier etc. The Sat Nav system is built into the standard CD player the vehicle comes with, and although there is a convenient space below for the new head unit I've been told by two local dealers I would have to sacrifice the Sat Nav in order to hear the Dension. Does anyone know if there is a way around this? Is there any way to have the two working in tandem? Many thanks in advance.