Haha... yea that's correct. The kufatec unit is the speaker and module, made by Kuhnke (now Kendrion), but with the module running their custom software. Same module that's in VW's, Audis, Porsche, Mercedes, BMW etc. The OEM software, prior to being cracked/analyzed by Jilleb and Dark, has several tables but they were locked by VIN
and Engine type, which determine which of the internal sound tables will be used. The tables have different sound for different drive modes and the sound will vary with throttle, vehicle speed, RPM, etc.
Anyway... Kufatec units still take that information (from the powertrain can bus) and use it to play sounds. They also have some user software that lets you add custom sounds (I think). OEM way ties sound profiles to driving modes only but Kufatec's module software allows control a number of ways depending on the vehicle... via a push button, via a phone app, key fob, cruise control buttons, etc. They also allow control through driving mode on (many) VAG cars.
My module and speaker cost me a good bit less than the Kufatec setup, and it will work the OEM way. I would love to run just their software, which
seems to be available as an add on to OEM installation (like mine) but even that costs nearly as much as my whole setup.