I've got just the opposite problem...
I'm using a Samsung T10. If I play an album and I shut the car off and back on, the last song will come back up but after that one it shuffles automatically. The suffle feature on the T10 is off and random is off on the car.
So, in other words, shuffle/random is on all the time by default.
Maybe the T10 is your fix, embalmer.
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