I just installed this sony head unit....
http://www.crutchfield.com/S-izcNx73YWkT/cgi-bin/ProdView.asp?g=300&I=158GT200..
it sounds amazing compared to the becker and I really dig the fact there is an aux input plug on the face...
I picked mine up for $100 at a local electronics store and installed it myself, about 1 hour of work all together.
Good Luck!