It's kind of wild though, as I was born just as Vietnam ended, and it's always been the defining cultural touchstone of my lifetime. More than 9/11, Afghanistan, the Great Recession, any of that. it permeated everything. The only thing that was close was the fall of the Berlin Wall.
So is it just me, or did anyone else get more and more addicted to hybrid picking as they got older? I pretty much 100% flat picked in my youth, but these days I swear I hybrid pick damn near everything that isn't straight power chords. I wonder if it has to do with mellowing with age or something.
If you are using the pre out you just be able to turn the post gain all the way down. No Y cable.
Plus isn't it solid state? You could just turn the volume down to an acceptable level.
If I had to guess it would be just inside the connector, but that's only a guess.
The cable on the right with the red tape is the one I recabled a couple years back, those connectors are early 70s. The one on the left is a patch cord I use to jumper the channels on my tweed Bassman, it's probably early 80s and still the original Belden cable!
I actually just recabled a couple years ago an old Whirlwind I had gotten from my dad back in my high school days. It eventually got to where the rubber just split on it. Those old Whirlwind connectors are my absolute favorite though, solid block of brass. It sent my on an eBay quest to find as many as I could lol, got a pretty decent stockpile now.