lights dimming?

Lol aside from the avatars. So it's a grounding issue eh? Sometimes my volt meter would stay at the middle of the white and blue parts and my battery AND brake light would go on WHILE I was driving. Weird, this as well, is a grounding issue? Possibly a major one?

 

I was thinking that too. And I had just bought that one a year ago. Problems problems problems.

 

When I had my issue this is what would happen:
When putting on the turn signal the alternator gauge would start moving, the rpm gauge would start moving, the a/c control panel lights would start blinking with the turn signal.
It could be your alternator but I have replaced 3 in 2 years going fro 60 amps to 75 amps and still got the flickering.
You can diagnosis a small issue to see if it will work, For the taillamps open the rear panel to show the Taillamp housing(where the bulbs are) the plate is screwed in with 4 screws, take a piece of wire and connect to one of the screws hat is connected to the grounding plates then find a good clean grounding location on the frame.
You will see a brighter tailamp and you may lose the flicker fade when using the turnsignal. let us know what you get so we can keep trying to find the problem!

 

If we were to get our alternators customized at some place and I understand they are 60 amps, what modifications would help it become more efficient?

When my sunroof opens and closes the voltmeter goes insane, then my radio would show "Goodbye" whenever it would reset. Sometimes even when signaling for a turn it would do the same to my radio.
You have these types of symptoms too 89vert?