I am working on this MOD, upgrading from 5.0, I ordered what was supposed to be an RA4 received it today from LKQ

, its an RA3 an, BUT it says WITH navigation.

what is the real difference between the 2 other than the 3d maps and HD radio option? should I mess with return/swap, or roll with this one. I cross checked VIN and its from a 2015 2500 SLT.. I guess is it worth the wait to try and get what I intended. I paid $400.... seems to be low end of ball park pricing for the 8.4 with nav, from the hundreds of pages I've read. any opinions appreciated.