Non Ml Audio Systems

[maddgoo]

From reading other posts, Pioneer has manufactured the non-Mark Levinson audio unit for the Lexus in years past. Is Pioneer the current vendor for 2005, or was there a change. There are a couple of operational changes between the audio system in my former 2000 ES and new 2005 ES. Neither has the ML system, but both were installed with CD changers. Seems to me as if the 2000 system had more punch?

Any info would be appreciated.