The Acura TL's DVD-A system is provided by Panasonic (there's an article about it here ), but there doesn't seem to be a lot of aftermarket support for DVD-Audio yet. Crutchfield appears to have only one head unit with DVD-Audio support, a Kenwood unit that sells for $2300. I found one other link about a high-end unit from Alpine, but it doens't appear to be listed anywhere on Alpine's site yet.