1996 Saturn SL1 help oh great car guys!

Electrical problem
1996 Saturn SL1 4 cyl Front Wheel Drive Manual unknow miles

ok, we removed the engine and transmission from the vehicle and replaced the clutch. We drove the vehicle for 2 months and it drove great. However, the dash lights, rpm guage, and speedometer now does not work. We replaced the factory radio a couple of weeks ago with a aftermarket one. Now the car is shorting out the module/coil packs. We have replaced them 5 times. They run anywhere from minutes to days. This vehicle is an everyday use car so I must get it running. I checked the fuses, removed the radio, but it still is shorting the coil packs/module out. Please help! Thanks,
danny