2005/2006 range rover

MY TRUCK AIR SUSPENSION, CD CHANGER AND AIR CONDITION STOP WORKING. AIR SUS ONE POSSITION LIFT CANT ADJUST UP OR DOWN. AIR COND FAN BLOWS BUT THE CONDESSOR DOESNT KICK IN. CD CARTRIDGE DOES EJECT AND IT DESPLAY ERROR MESSAGE NO DISC. ANY SUGESTION.

Look if a common circuit is involved. I would especially look at the air suspension circuit. It sounds like an amateur power installation. I am sure that a sound system should rely on a 10 AMP fuse while a fan should rely on a 15 AMP fuse. These are different circuits. I think the add-on circuit - the truck air suspension - may be the problem.