Scrolling LED Sign

What I want to do is get a scrolling LED Sign such as a Beta Brite and use it to replace my center break light. My idea is to have it function as a break light and allow me to scroll messages across as well. I would also like to be able to have it interact in some way with my turn signel. Can anyone help or point me in the right direction?

Here we go again. Can anyone help or point me in the right direction?

Huh...its not very often you see somebody actually quote themselves...


And as for the right direction, have you tried Google?