Apparently (and I'm paraphrasing), the cost of the screen is not much. There's the cost of controls integration, at least, but also feature segmentation and war

Apparently (and I'm paraphrasing), the cost of the screen is not much. There's the cost of controls integration, at least, but also feature segmentation and warranty servicing. Apparently that's a lot of work to provide / cover and infotainment is one of the top warranty items. So it makes it a lot cheaper to just add a rack for your off the shelf bluetooth speaker.