Polaris has 5 different keys, numbered for 1-5 with dots on the rubber part of the key. I can't remember if its on the side with the star or the side that says Polaris I think its the side that says Polaris and its underneath it. Easiest way to find out what key you need is to go to a dealer and ask if they have all 5 keys in stock or if they have all 5 from new sleds you can try, take the sled or the ingnition with you, and then order a new one. Some dealers even have extra ones form sleds that they took on trade and then parted out.
'06 Fusion 700 0 miles just bought it
High Flow SLP Air Box
Hot Air Elimination Kit
MBRP
136/15/1.5 Ripsaw tracks usa kit