You mean this?

http://www.radioshack.com/product/index.jsp?productId=2103730

That looks good - if I can find one locally I'll jump on it! There's a lot of complaints about it in the reviews, but it's worth a shot for that kind of money. They had an older one for $5 that was meant for a car, but sold out before I could get one.

-Philip Maynard '95 Contour [71 STS | Track Whore] '97 Miata [71 ES | Boulevard Pimp] 2006 autocross results