MARUTI-SUZUKI SMARTPLAY Infotainment Systems which are deployed as an OE in almost all their available mid-segment and up-segment models and are seriously DEFECTIVE. Checked at verified in many New BALENO 2022 DELTA Models at their NEXA Showroom & Service Centre. Shared my detailed video on YouTube captioned as DEFECTIVE SMARTPLAY STUDIO for your ready reference.Defects are clearly evident when music streamed thru' USB or Bluetooth. Simply, just adjust 'Treble' at Max from BASS/MID/TREBLE settings & Graphic Equalizer 4K and 10K Frequencies on a gradual high (refer attached Pix), following defects will be easily noticeable when we gradually INCREASE VOLUME from LEVEL-15 Onwards:-1. Music Suppression in waves.2. Insignificant Volume Increase thereafter.3. Complete distortion after Volume Level 30.The problem seems in rendering Digital signals only as both Bluetooth and USB do the same. The FM, being Analog signal, does not show any aberrations as mentioned above.MARUTI-SUZUKI has not provided any solution to this problem which I had been pursuing with them for over 1-Year and now they have even declined to consider it as any problem saying it as their ‘System Feature’. Enough mails from MARUTI-SUZUKI are available showing the way they have tried to first delay & then snub the issue with an absolutely vague solutions.There still might be many-many like me who are deprived of any solution by MARUTI-SUZUKI and are forced to use a DEFECTIVE INFOTAINMENT system. Request, please also verify the above anomaly in SMARTPLAY STUDIO from your end also and if convinced, do post in your newsletter to expose such callous and nonchalant attitude of OEMs towards its affected customers. I also have no issue if my reference is also mentioned to highlight this issue.