I am trying to help a friend with this same scenario. 70 Challenger and Year One harness. Same problem with the open door preventing engine shut off.
I removed the relay and the engine shuts off like it should.
Anyone else have this problem? Any updates from the OP on this?
Where is the buzzer located? Where can I buy one?

Thanks,
Mark


1996 Ram 1500 Sport
1968 road runner
1952 Sears Allstate licensed, pump gas, Hemi 5.98 @ 115.73 1.33 60 ft. The best is yet to come. Painless Performance / Street RODDER magazine Top 100 for 2019