Thatís the Spartan PDC.
ThereĎs a ďCustomer PDCĒ somewhere where things like the dash accessories would get power from. The wires attached to the board mention the ďCustomer PDCĒ.
Or perhaps this is the Customer PDC that the wire label refers too and the other end of the wire is connected to the Spartan PDC ?? In which case, any additional accessories must be powered off of the lugs that I have circled instead of getting power under the dash or elsewhere.