Most car radio software from the 90s and 2000s are very reliable. Most software bugs come from change, and since embedded system stuff doesn't really change af

Most car radio software from the 90s and 2000s are very reliable. Most software bugs come from change, and since embedded system stuff doesn't really change after delivery, it stays fairly reliable. I estimate 2010s basic software is fine too. And wiring harnesses / solder points being secure is an issue with normal car dials, buttons, gauges, engine / emissions control chips and more for quite a long time. I think you have to go back to the 80s or even 70s to get non-electronic gauges in mass market cars. The entire wiring point stuff is mostly a solved point. Yes some VW cars and other less reliable manufacturers do have solder or microswitches go bad after 20 years, but I'm fairly certain it isn't much of an issue in makes like toyota. And by that time in 20 years, some chinese manufacturer has made a clone part for $30 and it's mostly a non issue.