How to add USB input to land cruiser vxr v8

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Hello
I have a Landcruiser vxr v8, it comes full option from the factory.
my model is 2009 and I don't have a usb/auxiliary input to the audio system.

please suggest me a way to add any of those. I can't change the system because it comes full option and 6 DVDs changer system.

Thanks