Yes, that's the key. You pay for MB to program the infrared to match your cart. Any locksmith worth his salt can cut the key to match the one you are currently using. I had several spare, plain, keys cut from my infrared master just in case. My local locksmith did it.

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roadkingmike@aol.com
Coast Aero Support Services, LLC
'92 MB 500 SL
'01 BMW 525i Sport
'98 Harley Davidson RoadKing
'74 BMW 3.0 CSi - Gone to a good home