Before I added the relay for the heated steering wheel, there were 4 empty spots for relays. Now it is down to 3 empty spots! I've seen a picture of a Canadian X with a bigger relay in the empty spot shown on the left but I don't know what it does. I've never seen any pics of relays in the empty spots shown on the 2 top right empty spots.

Anyone know the answer to this or know a way to finding out?!