I wanted to upgrade the factory unit in my 2007 but keep it looking as "stock" as possible. I wasn't looking for a premium audio upgrade, just needed touch screen + bluetooth + USB capability in the truck.
I went with a 2015-2018 Yaris head unit (PT546-52150). It's almost identical to the Scion head units people have been installing but has Toyota branding instead of Scion (something that was going to drive me slowly crazy...).
To install this, you will need from Toyota (hat tip to
@
Southernbike
for this part list):
PT546-00120-AD Antenna harness
PT546-00120-CH 28 pin conversion harness
86190-0C020 USB-mini jack
PT233-47100-WH USB harness
PT546-00120-US USB conversion wiring
PT546-74120-MC Microphone kit
On the USB wiring, you will need to trim a tab off of the connector to make it work. Very simple.
For the antenna, you will need these. They adapt the two 4Runner antenna wires into one.
Scosche Mda-B Micro/Delco Antenna Adapter Tip
Metra 40-UV43 Male to Female Motorola Antenna Cable
I love the look.