hi, i seen them on ebay. you might also check TS classified's.
the problem is, you need to go to a toyota dealership to have it programmed,
into your vehicle. not sure but i belive they need access to your ECU.
so if you have the unichip, or anything installed into your ecu. remove it.
otherwise toyota might have a issue with it.
be careful when buying these. many times there already broken or knock off's.
i know there expensive, but it's better than buying a broken 1,
or 1 that isn't for your vehicle. good luck.
just my .02 cent's,