It is pricey but we didn't pay cash for it, we used a credit card rewards program. I highly recommend that if you qualify for a credit card with a rewards program, you sign up for it. The points accumulate quickly and we have used them for restaurant gift cards, camping gear, printer cartridges., etc. The radio in the bedroom area does not tie into the in-dash unit as far as we have been able to determine. The rear unit has internal/coach speakers and also exterior/patio speakers. I don't see the necessity for the second unit but since it's there, we use it for outdoor music mostly.
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