OK, I tried turning the key on my stick GTS with the clutch not depressed. The clock and radio dims just like yours. One way or another, your starter is simply not getting power. The primary culprit is the cutoff switch. Maybe its just out of alignment? I'm not sure if it CAN get out of alignment; I was just checking around by feel in the dark just now. The switch comes out of the floor just to the left of the clutch pedal lever; its a long, slender push button. When the clutch is pushed in, it has to be able to depress that switch. Try pressing the switch with your hand (make sure the car is out of gear with the e-brake on), and while pressing the switch, see if the starter will crank.