IkenEffect
Newbie
https://www.ak49bwl.com/other/wires/1997K1500/WarningSystem.pdf
That's the pin-out.
There's no door switch input - the key switch runs through the driver door switch.
Thanks! so the only way would be to delete the key pin maybe. Well, I guess a 90's chevy car buzzer will have to do unless I can find a way to mod the speaker tone on the original unit.