99 Jeep Cherokee Sport w/ 4.0L Automatic, No instrument panel, No spark, Engine rolls over fine.

Could be a problem with the headlamp switch, for No Spark-Do below

No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing