[cnk]

I used the following for my 8000NEX install:

Wiring Harness - Metra 70-1761 Receiver Wiring Harness Connect a new car stereo to the factory wiring in select 1987-up Toyota, Lexus, Scion, Subaru, and Geo vehicles at Crutchfield.com

USB adapter - Metra AX-TOYUSB Cable for Toyota and Lexus Allows you to connect the factory USB port on select 2012-up Toyota and Lexus vehicles to a new car stereo at Crutchfield.com

Antenna adapter - Metra 40-LX11 Antenna Adapter Connect a new car stereo to the factory antenna select 2009-up Toyota, Lexus, Scion, and Subaru vehicles at Crutchfield.com

Dash kit - Metra 95-8202 In-dash Receiver Kit Fits select 2000-up Lexus, Scion, and Toyota vehicles — double-DIN radios at Crutchfield.com

The dash kit is not a perfect fit. You'll have to notch out a bit of plastic, but it isn't bad and not noticeable once everything is mounted.