Thanks @GTSSportCoupe
I have removed the passenger front side panel over the weekend and found that the water is leaking through the seam (panel near the door, just under the wiper arm / air intake tub), including a small rust hole down the panel. I have used seam sealer to plug the opening. I...
I have been hunting a few water leaks over the last week, but one is still evading me, but think it is leaking through the engine bay (Firewall) and then through the seam.
The first leak came through old seem seal near the passengers side wall. painted with rust converter and pressed new seam...