avital alarm/remote start

1996 Blazer 4dr. LT. Avital 4303-1030, 5CC1263F6FA are numbers on both black boxes. I want to remove this system. Cannot find any info for returning wiring to OEM. There are 3 relays that have been installed or altered. They have connectors on them not GM plugs. The LED is on solid red now. There is a toggle switch under the drivers panel. (valet switch I guess). Cannot find any info on the 4303-1030 number on the two black boxes. Any help to convert to OEM would be appreciated. Thanks in advance.

Basically trace all the wires from the alarm, cut them and insulate where they were joined to the factory wiring. There might be a starter cut, obviously rejoin the leads at that point.