Feedback thru turn signal

[mstacy]

I am getting electrical feedback when I turn the headlights on. It makes the left turn signal dash indicator glow green. It only happens when I turn the lights on. I also noticed the left turn signal isn't quite as bright as the right. I have a new forward wiring harness and new engine harness from Brother's. It seems like it's a ground problem but I have checked the connection many times and also removed all the paint where the harness wire grounds itself to the core support. My water temp gage doesn't work either now and it used too. If I use a test light and ground the water temp out, the gage then moves. Can anyone think of a ground I may have forgotten?

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Mike Stacy, S. Calif.
1971 Factory Hugger Orange Shortbed, 350/350, 20" Torq Thrusts, 3/5 drop (belongs to my son Christopher now) I am looking for a rustfree loaded 71-72 Burb.