This is what i did, I switched my 03Gt gauge cluster to a 99 cobra cluster, ford had to reprogram the mother board for my keys, but know my rear defrost light stays on, so then i swited mother boards back to my Gt and the niddles were off a little, I bought this cluster because i didnt want to deal with the sticker gauges, what can i do i really wana keep my cobra cluster ??? :crying: