I have a 1994 jeep grand cherokee limited. 5.2 v8 ZJ. The radio and computer comes on and pulses/flashes but does not play. The ac and heat comes on and works fine. The antenna is not working and the back light I'n the cab pulses and flashes with the radio. Door lock are not working. And when you open a door there is a clicking noise that sounds as if it's coming from the dash board underneath the glove box. Any clues what could be causing my troubles?