Backpup FOB for 2006

Guys,

what is the part number of non-SKS FOB that can still be used on 2006? I would like to get one, program it for remote buttons, keep the cut key in a hide-a-key box underneath the car, hide the FOB inside the car for emegencies. From other threads I got the idea that non-SKS FOB (2005 or 2004 or is there not-SKS 20006???) will still start the car but needs to be physically inserted into the slot, and that's fine. Once I get the FOB, is there any way to program it by myself of is it "dealer-only" item?

TIA

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