There's no way that different bulbs would be on different fuses. Your problem is due to a blown bulb or bulbs or perhaps a bad contact / damaged track on the dash circuit board (bit of a bugger to get to I'm afraid). If it happened about the time that the Parrot was installed it's highly likely that something was disturbed or damaged by the installer. Perhaps you should go back to them, swear it's their fault and invite them to put it right. Or perhaps the lights have just gone out in protest at your choice of music - try Radio 3 and see if it helps!