Hey guys I have a RHD UK EG and the left (passenger side) door speaker does not work. I have tried another speaker and that doesn't work. The right side front speaker works fine. Now I'm not electrical expert but I do have a multi meter but no clue how to check if there is power coming to the wires? Also the radio harness is cut by previous owner and crimped onto the aftermarket stereo wiring, not sure if that matters.

Anyone know what I can do to fix this issue?

 

wire is broke/damaged at the door jamb connector