Toyota — Multimedia Manufacturing defect

Hello,

I see that all toyota innova crysta's bluetooth to video connectivity has some delay. This is not seen in aftermarket products. I have repeatedly spoken to service advisors and managers on the same but i did not get any response from almost 9 months.
This is a very basic feature i wonder how did toyota miss this and not the quality which i expected from TOYOTA.
Issue : Play video through any device via bluetooth and there will be a delay in video to audio basically there is no sync. I have checked with other after market devices and there is no such problem.
Request anyone of TOYOTA to at least have the cutesy to respond.