Can you add a Blind Spot Monitor to the 2021 RDX base model? or the whole tech package? I just purchased a used 2021 RDX base model and my wife loves it but I wish it had the tech package. I know, I know, I should have held out for it but I was in a rental that was costing a fortune since our Lincoln MKX's engine blew up. I've seen BSI systems you can add on that attach to the side view mirrors but that seems a little cheesy for a classy car like the RDX. I checked with my Acura dealer and they said no but thought I would ask the experts here in this forum. Thanks in advance.

Ken