I'm attempting to locate one on my '89 Diplomat Police car. I pulled every fuse and still had a 60 Milliamp draw which is high for an older car. I was about to test with alternator disconnected, but needed to change batteries in my voltmeter, and when I opened battery compartment they had leaked out and destroyed it. So that's my next thing. Another voltmeter should arrive any day now. Lots of suggestions here;

https://board.moparts.org/ubbthread...tic-draw-or-bad-battery.html#Post2864873