93 Sable BATT drain

The BATT drains in about 4 hours after turning engine off. I took the ALT out of the circuit-still drains BATT. Took the starter out, drain is slower. Took out the 60 amp ignition fuse. The drain on the BATT look like it is gone. So what is in the circuit that would cause the BATT to discharge? The ignition switch?
Any help would be great!

replace the starter and the ignition switch

Were you able to fix the battery drain?