It's already expensive. The Entune head unit in my Corolla would cost me $1000 for an OEM replacement (they have a known touchscreen issue), but an aftermarket

It's already expensive. The Entune head unit in my Corolla would cost me $1000 for an OEM replacement (they have a known touchscreen issue), but an aftermarket head unit with way more features may run me ~$400 including a mounting kit, and that's if I splurge on a nice one. I may give up a few features by switching, but certainly not $600 worth of features.