head lights pulse after bypassing my bulkhead

I beg to differ about the diodes. I discovered about 35 years ago on a well abused 66 Dart Dart convertible I purchased. I changed the bad diodes, flicker went away. It did have a mechanical regulator, electronic may be some better. I used a scope to trouble shoot, then removed one lead from each diode and checked with meter. Back at that time small parts for alternators were easily purchased.