I recently got the blue LTD going again, and the 6 stacker is playing up...

It has the full premium sound and sat nav.

When I turn on the car, it came up and asked me fore the code, all good entered it in and it starts up, but after about 15 or so seconds, then sound drops out like when you press ATT on an aftermarket stereo, all buttons still work except the volume button.

It displays AU on the screen. which is making it a headache to try search a specific problem online lol.

cant turn volume up or down and when pressed to turn the unit off it cuts the sound for a second as the button clicks in but stays on.

The navigation screen has also stopped working and the CD unit in the boot has power light on but wont spit out the CD....

Anyone have any ideas?