I finally said enough and replaced the sound system on our 2014 Jayco Eagle with something that lets music sound like music. Every time I put the stereo on I would cringe at the poor quality sound. Fast forward and I can tell you it wasn't a hard do it yourself project and the results were great. I replaced the stock quest speakers with Polk 651 speakers and the Jensen head unit was replaced with a Blaupunkt New Jersey 220. These were just personal choice. There are many really nice head units and speakers that will fit.
Polk 651 Speakers: Replaced all 6.
Polk Audio db651s 6-1/2" 2-way shallow-mount car speakers at Crutchfield.com
Blaupunkt 220 head unit:
Blaupunkt New Jersey 220 BT CD receiver at Crutchfield.com
I attached a pic of the speaker install in our Eagle. I can't find a pic of the head unit install. I'll get that when I go to the camper next.
All in all I'm extremely pleased with the change. The wires jayco connects with simple telephone wire clips. The old speaker covers pop off if you catch the edge with a screwdriver or can opener. If anyone wants details just let me know.
one more thing. I left the outside speakers disconnected. Like many people above a blue tooth portable speaker works much better and is close to where we sit as to not disturb neighbors when we want a little background music. We chose the bose speaker below but there are a lot of great bluetooth units out there.
Bose SoundLink bluetooth speaker
Let's go camping now.