I did some digging and found this...
https://www.aliexpress.us/item/32568...Cquery_from%3A
Its a box that connects wirelessly to the ID8 and emulates carplay signal. It has a sim card slot if u want to add to ur wireless carrier plan. Would suggest grabbing an IMEI from a tablet with 4 or 5G and I am almost certain you can spoof the IMEI on this box so ur not paying by the GB. Hotspots they charge by GB and I think this would be considered a hotspot device. It might also connect to ur hotspot on ur phone (I cant because I have old grandfathered TMO plan and only get 3g speeds on hotspot mode or tether) or in the car if you have the ESIM option. Personally I have a 5G hotspot that VPNs automatically to my house network and I use the FIOS app and I dont have a problem watching any channels I pay for. Im sure u could also sideload other apps to this box as its basically an Android TV box or similar and it should take APKs. Im ordering one and gunna mess with it and report back my findings and what works and what doesnt. You can watch while driving or parked. Im gunna try Plex, Netflix, DPlus, Amazon Prime Video, FIOS TV, etc. You can probably sideload ur CCTV app and watch ur cams on ur idrive.
The ID8 lets us use multiple phones at the same time but only AA or ACP at once. So you can have ur phone paired to the ID8 in BMW BT mode and this device in CP mode. And when not using just shut off and ur Iphone should go back into ACP mode. If not you can go to mobiles and tell it to use ur Iphone for CP. Just read you can connect as AA or CP mode. But still cant use this box in AA mode and ur Iphone in CP mode at same time.