Recently I bought an ACS712 5A module. I hoped to make a current sensing meter to find which wire in my car loom is drawing current much like clamp meters sense large a.c. currents in wires.

Only I found this Arduino module using the ACS712 senses currents on the actual pcb track so was no use.

So can anybody suggest a circuit or module or meter that is affordable for sensing small/large mA d.c currents in wires without actually connecting to the conductor?

EDIT I’m not asking for a product just the method, circuit or device.