And pro-tip if you need to go down the line past the fuse box: if you have a DC clamp-on ammeter, you can do multiple windings to 2x or 3x the current readings for smaller draws that the clamp-on might not pick up on.
Whoa, thank you. I was disappointed to read in my multimeter's manual (klein CL800) that the resolution for DC (up to 60A, if I'm reading "range" in the chart correctly) was only 10mA.
I tracked mine down using a different method which helps when your fuses don't all have test points (and no conversion table needed).
- Disconnect negative battery cable
- Switch your multimeter to 10A (don't forget to swap lead ports)
- Connect the multimeter in-line between the negative cable and negative battery post
- The readout on the multimeter should now tell you how much drain you have
- Start pulling fuses one by one until you see the amps drop to normal