[DANTIP]

My '72 Trans Am without A/C has the 30 amp fuse holder attached to an alternator wire. I thought that was for A/C cars only.

A few years ago Restore a Muscle Car sold a very similarly equipped original 4-speed T/A without A/C. Attached is a photo from the sale that clearly shows it too has the 30 amp fuse holder.

I hope someone can help determine why they were on these cars.