So I am hoping someone can help me out here. 2019 Sierra Limited. Bought the proper switch panel, got the pigtails I needed, pulled it all apart and 10-13 are occupied. Pull the Junction block (X61A) near the e-brake, 21 has the red/white and other wires as described above. Open the fuse block and there are no terminals where the relays and fuses are supposed to go. So I am assuming I need a new fuse block, what part number? and then if the wires go from the fuse block back to X61A then I would need a connector for X61a with outputs. (?)