This is an Aux line-in adapter for various Toyota models made by Simple Dualink
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I used it on a 2007 Lexus RX400h. It may work with other models.
It plugs into a connector on the radio and supplies an Aux input to connect to a cellphone, ipod or Bluetooth adapter.
Comes with everything pictured plus a 12V adapter power supply.
The picture of the label is blurry but is printed ISTY531 Rev. 1.7852b lot 010
I can ship it in the US.