I installed a Pyle DVD player way back in 2006. No real complaints - it does what it does.
It does have an AUX in which I have put to good use. I attached a Bluetooth audio receiver to it. Thus I can play music from my iThingy. Then I built up a Raspberry PI Wifi access point and attached a 1TB hard drive to it (all 12v stuff). The RPi hosts my music library. That way when I am out in the boonies (no cell service & streaming services), I have plenty of music available.
For outdoor speakers, I came across a pair of speakers mounted in a vinyl box at Walmart a number of years ago. The type of thing someone would use in their car's backseat. I just wire that in to the exterior audio jacks whenever I want the around-the-campfire music. Is the wiring a trade-off over Bluetooth speakers? Yup. But they do run off the stereo (camper's 12v system) whereas mobile Bluetooth speakers need the occasional re-charge - not always simple when off-grid camping.
Works for me, and is probably different from what will work for you.
-Eric