@Baloney Balderdash - I must say, Tim is a genius when it comes to fabricating for basses without pickguards.
He’s helped me with some previously.
you can make a paper template (or card) and he can work from that.
No it’s volume/blend/bass/treble
TRB has either a mid sweep or a 3 notch preset mid Control (depending on era) - also some TRB’s had a piezo control too.
My loose general knowledge of fender amps is something to do with bridging inputs with a patch cable.
have seen it done on guitarists amps.
I think a button would do 😂
14 years ago…I had one…
I loved it.
I was skint…baby troubles.
But, thinking back, I loved looking at it…battled the sound all the time.
I dunno - never meet your heroes.