@leejsmith, I found a little bug with the 4-slot Big Red kit. Not sure if this known or not or affects other kits, but with the controller board orientated so the brightness pot is to the right and harness side is to the left, turning up the pot all the way clockwise renders the kit non-functional. At boot-up, the kit will cycle through panels 1-to-4, then just goes dark. The fix, simple. Just turn the brightness pot to the halfway mark which is plenty bright for dim light conditions. (I had turned up the pot all the way during installation and testing during the daytime hence I encountered the bug). My buddy had the same issue and was fixed accordingly.
Also, I got the Big Red 4-slot LED kit working on a MVS-U4/29 without any destructive/irreversible mods to the cab or to your kit. The only part of the cab that has to be removed and set aside is the mini marquee holder which I have affixed to the marquee compartment so it never gets displaced from the cab. Fabbed my own ELA cable with JST NH 8-position connectors to make it work. Wired it up to +5vdc off the PSU. I am really loving your production on the MVS-U4. I know it is not OG, but something cool about the mini-marquees cycling through on a candy cab. Thank you sir!
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