The MOST bus is very particular in what it accepts, so your 24/48 flacs have got to be at zero compression for the car to play them. The conversion is a snap with foobar, which is free. Just open up the files you have, be they wav, flac, 24/96. 16/44, whatever, and set up and save conversion setting to end up with 24/48 flac at zero compression.
The output that you get will play in the car, be it 4.0, 4.1, or 5.1. The only other thing you may have to deal with is the number of channels. If you have quad or 4.1 stuff, it needs to be in a 5.1 file, so the center and lfe channels will have to be empty and present if they are not there.
It's a pain for sure, but once you get it down you won't even think about it
Aw, I just saw this... yes, the MOST bus. It connects to the back of the NAVI head end, which also hosts the controls for the audio system. Standard Honda/Acura design.
We currently have an '18 Passport Elite. Can't replace it because the dealer has NO inventory.. With COVID, we have low miles on it.
It turns out the cars all had a defect, this affected Passports, Ridgelines, Pilots and MDXs. All the "big V6" Honda vehicles.
For the first year and almost a half, our car kept issuing POPs over the speakers... The sound of bugs hitting your windshield at 80 mph in a summer day when you drive through an agricultural area with fruits and tomatoes? THAT's what it sounded like.
The popping would come and go. During these episodes, if you hit the horn, a burst of LOUD static would come over the speakers. When the pops hit, the audio would cut out for a second or so... just so you knew the system was popping on you. Heck, I felt like pooping on the system.
It made no difference if the stereo was on... because, yep, it's always on for the engine sound mitigation system. WTH?
The dealer undid and tightened the entire CAN bus... removed the front seat, redid it, four times. Added a fix to put in some strain relief on the MOST connector, etc, etc... We stopped at having them remove the entire dash ( another possible can of worms). Nada.. We did a couple of trips to the Pacific NW... trust me, we had the patience of Job.
We even had factory engineers come and take a look at our car. They also looked at a number of other cars that the dealer had gathered for this "research expedition". They were taking this seriously as an AHM VP had one such vehicle affected... so you don't piss off the VP of your own company.
Nothing. They had no clue.
The only thing that saved us was that with COVID we seldom went anywhere. Before long drives, we'd have the dealer tighten everything and the popping episodes would last about half an hour and then go away for five hours or so... only to come back just as we were most grooving to the music.
Eventually the factory realized the problem was the MOST connector itself but, yep, because of COVID they were back ordered.
So, finally, after almost two years, the dealer got a hold of our replacement connector, installed it and since it has worked fine.
Connectors are the most problematic problem with electronics. But who would have figured out it was inside the connector, not the wiring interface?
We became experts at MOST.
I wonder if our Passport has built in 5.1 playback. I only use Android Auto to play 24/96 Tidal HiFi downloaded files from my phones 512GB stick. It'd be nice if I could "mount" the Android file system this way and play FLAC files. I normally use the "main" USB connectors for Android Auto and powering up the phone. I would figure you have to plug the USB stick into the "main" USB plug huh? So that means I have to charge my phone off the wireless charge pad or one of the other USB connectors (our Passport has four in total).