What brand are the locks? I've had keys made from CB5 blanks used for The Club steering wheel lock & ilco 1681/FIC3 key blanks. The club blanks also worked for lock inserts on my Yakima roof rack. I am suspicious that Yakima lock inserts will work with my current FIC TT door locks, but the Yakima rack, extra lock cylinder cores and Yakima core core removal key got buried in my storage unit when I moved.