Hi everyone! I’ve been lurking for some time and following along with the great instructions over in https://www.ramforum.com/threads/diy-2013-2017-ra3-ra4-8-4-radio-upgrade-hvac-conversion.135601/.
I’m upgrading from the RA2 in a 2016 to an RA4 I got from eBay. I got all the necessary parts...
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