What to do under the dash besides this?

str12-340 said
Yes, wiper pivot seals!!! You might also check the threads that address taking the main power feed and return out of the bulkhead connector instead of running it through the ammeter gauge. It's a lot easier to do with all that out of your way.

If you do the ammeter bypass and wire it like this, you wont need to bypass the bulkhead connector. First schematic is before, second schematic is after rewiring.