Had a play with with the Simple ABP Free app this morning and have to say I am liking it. Signs that the developers are in tune (sic) with the way I like things is are the big Play / Pause / Skip buttons which are easier to use on the go especially with a gloved hand and the organisation of audio files strictly by one album / collection per folder (handles subfolders too which is good for multi-CD rips) which is the way I like things without the fripperies of Artist / Album / Genres metadata etc.
Seems to handle current play points the way I want, one per folder (collection / album) so I can skip from one to another and back again and not lose my place.
Tried playing through my living room radio as a proxy for the van radio and the remote Play / Pause / Skip buttons work the way I want them to to.
Now for the one but: I can't seem to get it to automatically skip back a number of seconds when I do a Pause / Play. If this is not actually possible then I will have to adjust my way of working, Manually skipping back a minute or so at the start of a shift when setting it up for the day I can cope with. Manually skipping back 10 seconds after every Pause / Play cycle every ten minutes or so (I work multi-drop) will take a bit more getting used to though using the van's physical skip back button makes it doable and even then only really needed when the presenter was in the middle of an interesting sentence rather than when in the middle of some music.
Will take it for a road test at work tomorrow and see how I get on. One other concern is any Bluetooth reconnection lag as I jump in and out the van and it not restarting playback until I am back in the van and started the engine and not just near it (a problem I had the other day).
Don't think I will be using it for my extensive podcast collection though which has its own special needs regarding subscriptions and auto-downloads etc. I tend to play those at work as a break from the recorded radio programmes and when I can play them in one "sitting" or at least with only a couple of interruptions.
(BTW I forgot to mention that I recently did upgrade to a modern smartphone after seven years and already bunged a 256GB SD card in with about a quarter of that already taken up with my music collection and set all my apps to use the card rather than internal memory where possible.)
BT Infinity 1 (unlimited)