MCPOR

I bought a 2006 RX-400h recently it did not come with a retractable tonneau privacy. I was told there is a difference between the connectors that clip on to the headrests between cars assembled in Japan with the JTJ start on the VIN and cars assembled in Canada with 2T2 start on the Vin. Can anyone tell if the tonneau is interchangeable between these two types or not? The difference in cost is $100.00 on the ones I have found.