Put a nicely anchored 1/4-20 UNC mount in two or three locations, put a USB port that speaks the standard audio protocol next to each one, and connect those to an integrated DSP/amplifier suitable for the car's speakers and microphones. It will be good for three times the life of the car, and make everyone's lives easier.
In my mind this has been largely solved for the past few years with Android Auto / Carplay. It would be nice if there was a true standard, but at the same time, there's only two phone operating systems so it works.
If you're not familiar with it, there are some huge benefits of the way it works:
* The system updates with your phone, not your car. Applies to both hardware and software.
* Data plans are also tied to your phone, which you presumably have anyway.
* Preferences are personal; my partner and I each get our own music, podcasts, and suggested destinations.
* Personally I love that my music/podcasts follow me around. I can browse and start listening to something in the car, then hours later throw in my wireless ear buds and continue from where I was while I mow the lawn.
There is also some level of upgradability from the car side, too: I recently added a wireless android auto adapter to my 2016 car. It was under $100, plugs into USB, and once I got it paired to my phone, I basically get in and start the car and in a few seconds the UI is there.
What I am skeptical about is that this will continue to be solved for the next few years: there's always that chance that Google will outright kill it, or Apple/Samsung/whoever will become exclusive to a single car manufacturer, or the manufacturers will somehow bungle this up with a subscription model of some sort.
For example, I just junked a radio with a 30 pin ipod connector. It was great and smooth in its day, but now, not so much.
Could be we'll get lucky and the phones of 2043 will work with the cars of 2023, but I think it's more likely that the car will work and the infotainment stack will be a half-functional ghost mall of tech in the middle of the car
As long as Apple/Google maintain the ability to use the interface in iOS and Android, it will continue to work.
Also, that would be a reason for cars to come with replaceable head units.
This is a fair point... but also just what happens with technology and time.
I assume you junked the radio not because it was broken (that can happen to any gear) but because the 30-pin interface itself is no longer desired -- it's no longer the best way to get the content you want (ie: from your phone).
This isn't really a different situation from a 20-year-old car (CD player), 35-year-old car (cassette deck) or 50-year-old car (8-track).
20 years from now, if there's a market for it and it's technically possible, someone will make adapters to get AA/Carplay units to be compatible with whatever the current technology is -- basically the 2043 equivalent of a cassette adapter.
In my mind this has been largely solved for the
past few years with Android Auto / Carplay.
But auto companies like Tesla and GM are now working hard to unsolve it because there's no profit in it for them. They want to control the experience and extract sweet, sweet subscription revenue. So, I'm not sure how "solved" it is.
Or the manufacturers decide they don't like users bypassing their revenue models:
https://arstechnica.com/cars/2023/03/gm-confirms-its-droppin...
FWIW, I absolutely love Carplay and paid extra to have compatible head units installed in any of my previous cars that didn't have built in support. It's been fantastic, but I don't trust manufacturers to do what's in my own best interest.
See also the recent Mozilla privacy findings for cars.
Analog protocols are not a good idea for this. Digital with a decent protocol is much more reliable, whether wired or not. In practice, the best option is either wired CarPlay/Auto or bluetooth.
I used to change the unit, amp and all speakers. Now my new car is just working nicely unmodified.
> 1/4-20 UNC
ISO M8.
The car can feed media and mixing controls to the amplifier; there's no need to send that elsewhere. Strict separation of concerns. You want to play a "door is a jar" announcement? Tell the amplifier to reduce all the other channels to one-third their current volume and raise the announcement channel, then undo that. No need to involve the phone or tablet or mini-PC or MP3 player or subether radio.
The navigation app has a clock, GPS location, and acceleration and orientation sensors available to it in the phone. If you miss your turn, it will notice and find the next best route.
Why would you want to pause navigation on a gear change? Velocity plus the connection to the vehicle tells you everything you need to know. Zero velocity but still connected? Keep displaying stuff; you might be parking and you might be in traffic. Disconnected but velocity is high? The passenger is going to use you; keep navigation alive in the background. Disconnected and velocity is zero or walking? Go back to powersave mode.
For example, the nav system should know when the battery charge or gas tank level is not enough to get to the destination.
I want the car to provide every bit of information it has to the phone so it can do smart things with it.
I rent a lot of cars in lots of places and I am amused at how poorly some manufacturers are handling this. Yes, treating the phone like an iPod works. That worked more than a decade ago.
(I was amused by your comment about Massachusetts. I am fully aware that Massholes have no respect for each other or the rule of law. Every time I return a rental car to Logan in one piece is a victory.)
I've only ever known there was music...
What manufacturers do this state integration the best, in your experience?
The auto manufacturers still have this delusion that they’re competing with Apple and Google on infotainment, instead of seeing the truth that better phone integration is not only the technically better solution, it’s something the customers want, and something that saves the company money. But you can’t get someone to understand something when their salary requires that they not understand it.
This was rarely true in 1999, at least in the US.
They often had ones that were standard DIN or double-DIN size, but they were usually manufacturer-branded and styled with buttons that matched the rest of the car.
But if you google image search a 1999 Ford Taurus interior you'll see that not everyone was even then still sticking to the easily-swappable standard. Compare to 1999 Camry, which had standard size but came out of the factory with a Toyota-skinned radio of one sort or another depending on options.