Take the panel out that is around it

(3 bolts, 2 in behind ash tray and one under the cig lighter socket)

then remove the heater matrix knob. Then pull off the front for the heater matrix and the 2 sliders will pop off.

There is two clips that will pop out and the whole surround radio and all will come out, This way you will be able to see all the wiring you have in there.

Ypu may also want to disconnect the buttons on the dash too

Hope this helps mate