Which aftermarket stereo?

I put the Sony AX100 in our '18 c. We love it.

It should be noted that there is no disc player at all, and also no analog aux input. That means it works for AM/FM and anything your phone can do over USB or Bluetooth, so you can do streaming apps or playback of files stored on the phone. You can also plug in USB storage like a flash drive and it will play from that.

It has no independent navigation system, but does a great job of presenting your phone's navigation apps via Carplay or Android Auto.

In typical usage my wife plugs her apple phone into the USB line and puts Sirius/xm streaming radio on and simultaneously runs the Waze app for navigation assistance. We have briefly tested it with an Android phone as well and that seemed to be fine.

Steering wheel controls work perfectly though an external adapter box was required to translate, and the car's native rear vision camera works perfectly through this display also. I also replaced the car's built in microphone with the one that Sony supplied, so the telephone handsfree system sounds great too.

It didn't cost much, the installation was pretty easy in our car, the sound is fantastic and the phone integration is leaps and bounds better than the way Toyota did it for the factory system. Good luck!

 

I haven't paid anyone to install a radio in a very long time, but I suspect it isn't cheap, at least if you get the job done right. You'll be paying for a dash kit, a wiring kit, and a JBL integration kit. If your budget is $350, I suspect you need to be looking at $250 radios.

 

Touchscreen is good, and includes a calibration mode if you find yourself missing the target. Carplay crashes a fair amount when I connect my (very old) Apple phone but works much better with my wife's much newer phone. I have put that down to the difference between old iOS and the current version.

I can't say it's glitch-free though. We have caught the clock slipping time. This only just started when I applied a firmware update a few weeks ago. But hey the good news is that Sony is providing regular firmware updates for these, and they aren't hard to install. They did a few nice tweaks in the latest one, with the touchscreen getting a little snappier and a few on-screen buttons getting bigger and better defined.

 

Absolutely worth it. We bought the car knowing we were going to ditch the included stereo for something else. Saved thousands vs. buying the top trim with the good Toyota system, and this Sony is even better than that one.

And since you got me thinking of it I looked into the clock bug. Turns out the clock is trying to set itself from FM RDS, and somebody near us is transmitting bogus clock info. The RDS auto-set feature had been disabled previously, but many settings got bounced when we did the firmware update. So that's all it was.

The crutchfield people had an error in their database and didn't send the right accessories the first time around, but they took care of me (they always do) and eventually I had all the right stuff.

Installing the deck itself was quite easy. The rear vision camera was a minor extra challenge as it required an external voltage regulator, but that was just a few more splices. Steering wheel controls turned out to be falling-off-a-log easy. The translator box was already pre-programmed and just worked, so really it was just the expense of buying it.

The hardest part was the microphone for the handsfree phone. That took as much work as everything else combined. I could have done it the easy way and just glued the new one onto the dash somewhere, but I wanted to use the factory mic location.

 

I’m heading down this road myself shortly.
Pioneer AVH 201EX should fit the bill. I’m hoping the Metra dash kit looks ok and comes with needed resistor.