In 2006 they released some without the BA badges on the speaker grilles. Mine has the BA system without any indication on the outside. The only way I know to check is to remove, or get into, the rear panel on the driver side. The panel I'm talking about is all the way in the back when you open the rear hatch, the big panel on the left. You will be looking for the amp, if it has one, you got the BA system. If not, you have the standard system.