This is on my list to do.
Have to share a before and after view if a ground strap (pretty stout) that appears to be factory. Hope others will chime in to confirm.
Notice the heavy green corrosion (think its 13 years worth). Took a wire brush to clean off the loose stuff then used a small paint brush and baking soda/water to clean those wire strands.
You guys might want to check that strap if you are not doing what Janes1549 suggests here.
Regards,