[DZ28]

Not manufactured by GM but GM was involved in the development of the product. In other words it has to meet certain reliability, quality, performance, and crash-worthiness hence the attachment process. I know some of the folks on the team that developed this with MTX and while it may not be a 1000 watt powerhouse it certainly brings in a bit missing from the BA system and that is the lower end of the bass response. ******** makes great products but I'll bet none of their products has ever been through a crash simulation to see what happens...