I have a 1999 Carrera Convertable and I want to have circuit city install a pioneer nav,dvd,sat,radio

http://www.circuitcity.com/ssm/Pione...oductDetail.do

and was wondering if there is enough give in the housing/wiring for the a/c controls to be moved below the factory cd/radio (replacing the 4 cd storage) inorder to make room for the pioneer.

If so I was going to take it to my mechanic and have them to move and make space for the unit instead of the circuit city installers.

Thanks

P.S. I know my mechanic can probably answer this but its 11:48am est and I wanted to post something on this cool forum