Neg Batt Terminal Spark
Look you can't just stick your probes on stuff. You have to do this RIGHT
You sure you know how to set your meter up for current? This varies meter-to meter. If you post a photo of the meter and or the brand/ model number we can sort that out
There is only ONE way to measure current draw PERIOD
You REMOVE the negative cable from the battery. You connect one probe to the NEG battery clamp and the remaining probe to the battery NEG post
If you are actually really only measuring 2.*** milliamps that is a VERY small draw.