Well, no, the main thrust of my argument is that if the primary concern is data fidelity then sticking with a headphone jack seems silly.

But the thrust of my argument was that bluetooth was inferior to a wired connection (and probably inferior to analogue from the jack itself). As other commentators have helpfully pointed out this is due to the poor codecs in use with bluetooth. So there's plenty of extraneous contributed "data" that supports my claim.

But a wired connection is hardly unsupported, regardless. The funny connector seems like a nonissue for a car.

There you are putting words in my mouth. I never made any remark about the connector. It's almost like you came to this discussion with a point to disprove already in mind.

I figured "the aux connection has better fidelity than Bluetooth" was meant to imply "they should keep the headphone jack."

Alright, fair enough.

More directly to your point, though, I've never experienced problems like one speaker cutting out because the wire is too old with digital connections. I really like digital better because it's mostly either working or not.

Oh but ...

My big gripe with digital vs analogue is it's all or nothing. When digital degrades its unbearable to listen to. Analogue handles age more gracefully.

I guess I don't like being slowly driven insane wondering if some degradation is just in my head, jiggling the wire, etc. Maybe just me.