what do you have now?
Furrion makes what I think is a wonderful 1980's style stereo... that being it should have stayed developmental in the 1980's.
anything with RCA jacks vs HDMI connections for inputs or outputs I would not go out of my way to purchase.
I've updated the unit in our BH 2 yrs ago (sold it this June) was a Jensen system
JENSEN AM/FM/DVD/CD/USB Bluetooth Stereo
try starting here and go from there with what people offer you. Remember my opinion is merely that... my opinion.
when you find some systems that will fit check in a comparison on line to what you like for pro's and con's
Best of luck.
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TV 2018 Ford F250, hauling a 2018 KZ 331 TH 12 Sportster 5th wheel, packing a 2015 CF MOTO 800 U-Force SXS