Garmin BC camera upgrade

 

Going to upgrade from the RV760 to the RV780. I have the BC20 installed in my truck camper. I will also purchase the BC30 for the new GPS. My understanding is the BC20 ONLY works with the RV760.
I'm wondering..... are the camera identical? Can I swap out just the wireless control boxes? That would be one less thing to mess with.

Thanks, Eric

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Eric Garmin 3-Plus, 76CS, NUVI750, RV760LMT, RV780LMT