obd connectors for 09 yaris

[schreck]

Thinking of getting an OBD connector for my 09 Yaris, the type that shows info such as RPM, fuel mileage, etc.

Problem is, choice are quite a few. The one I liked the most, the Kiwi MPG is so hopelessly backlogged with orders it'll be July before those hit the market.

What do you think of any of the following:

Auterra A-500
MSD Dashhawk
Scangauge II

If you have any other suggestions, I'm open to those, too.

Thanks

[schreck]

Interesting, but a little pricey and requires that I use the one power outlet I have up front.