Clicking sound under dash behind radio area

SOURCE: While driving dash lights flicker

i had same proplem and replaced the headlight switch for 1997 jeep grand cherokee limited.

Testimonial: "thank you i will try this "

SOURCE: 1989 Jeep Cherokee - Electrical Problem - horn, brake lights, blinkers, radio/cd...

There could be a fusible link under the hood off the starter relay that is burnt out.

SOURCE: 1989 Jeep Cherokee - Electrical Problem - horn, brake lights, blinkers, radio/cd...

I think I have found the problem. When I wiggle the ignition switch the turn signals and radio go on and off so I feel the issue is in the ignition switch. From what I understand the actual electronics for the switch are at the base of the sterring column behind the lower dash panel and is connected by a rod that may need adjusting.

SOURCE: Change flasher relay on Jeep Grand Cherokee 2007

If you are looking for the old style flasher, it's not there. It's now called a combination flasher module (more $$) and usually it's on the right side of the column under dash. If you buy one first, at least you will know what it looks like.

SOURCE: jeep won't start until a clicking sound comes from fuse box

The click you hear is the fuel pump relay. It gets its signal to energize from the PCM.If you have a faulty Crankshaft Position Sensor, the PCM will not work. Check for a bad fuel pump relay and also all of the other sensors: Camshaft Position Sensor, MAP Sensor, Idle air Control, Intake Air Sensor,etc.