I purchased the gx550 Overtrail plus with ML system in it. The first impression of the ML system is not worth the 1000+ price. My previous car was a Volvo xc60 with B&W speaker, it sounded absolutely amazing, but this ML is just so so. After driving for 4000 miles and I realized there’s no bass sound at the back. I also found the video other people taking the rear door panel off and this is what the bass speaker looks like. Lexus come on.