It's not cheap ($1,200 without installation) but this site now offers to upgrade the user interface on older Cadillacs. It's not just software, adding the faster processor that allows the new CUE system to work. Apparently it makes the CUE operation snappier.
https://www.gm-navigation.com/shop/cadillac-cue-carplay-enabled-factory-system/
ELR owners must go with the more expensive IO6 system because the standard factory navi system requires it. There's a guy on another ELR forum that's going to have it done in the next couple weeks. I'll post his results (and mine if I follow through with it).
https://www.gm-navigation.com/shop/cadillac-cue-carplay-enabled-factory-system/
ELR owners must go with the more expensive IO6 system because the standard factory navi system requires it. There's a guy on another ELR forum that's going to have it done in the next couple weeks. I'll post his results (and mine if I follow through with it).