*Editted out the manual pic* you found that info.. Otherwise violet-yelllow 50V does seem to also extend to the cab for a number of things.. Perhaps trace back from one of the guns/kickback to see if someone spliced in some other wire.. Or just shortened the run for some reason.. If kickback/guns/plunger work someone changed some part of the wire for some reason..

Anyone know if those are for sale somewhere ?

I have seen those, but I opted for these side blades (to be installed still when I get to work on tng soon)
do not think I will change the translite..

https://www.tiltgraphicsinc.com/product-page/star-trek-next-gen-lcars-gameblades

If I can find that metal speaker panel (or another one that I remember seeing somewhere) however, I might do that...

Hrmm, might be a good first use of the carving machine I put together a while ago then.. Did you just rough draft a design, or use the Stern LE speaker panel as a template ?

Those look nice, even with me nit picking 'Warbrids' (and a couple other typos on the Objectives)