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Despite no longer sticking to the DIN standard, and climate controls being integrated into the infotainment system, there still exists a big market for aftermarket infotaiment systems, they just have to be engineered for the specific make of car you have. But they can be bought for most cars that have infotaiment systems that are now outdated
It’s pretty easy to jailbreak a Kindle and block firmware updates. But the fact that it is necessary in the first place sucks