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Just covering the basics...
First, an ammeter and volt meter are used differently. Your multimeter should be rigged up so that you plug the red (+) cable into a different hole in order to be able to read amps.
Second, an ammeter is wired into the circuit so that the current flowing through the circuit (from +12 down to ground) flows through the meter to get where it's going.
So check the wiring of that test harness and follow the wiring. A basic jumper should look like this:
>---------------->
>---------------->
A jumper for measuring voltage should expose both wires, but maintain continuity
>-----------+---->
+----> test point
>-----------+---->
+----> test point
A jumper for testing amerage should break continuity for one line but not the other.
>-----------+---->
>---+ +---->
+----> test point1
+----> test point2
And your meter bridges the two test points together.
Having said all that, how much was that cable? I have the loose connectors, but haven't yet made the cable.
Thx -CTH
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