I’m in a similar boat but I’m fairly certain you don’t want to connect to the RGB (12v, 4-pin) header. Addressable RGB uses 5v, so bad things can happen. My problem is the connection on the TT controller, designated as the motherboard connection, has a different 3-pin alignment than the ARGB header on my mobo. So I have the same basic question about how to connect the two - neither the chassis nor the mobo came with any sort of cable to accomplish this.