I have a model T5 drive E version and am wondering what is needed to add the following features:
Blind spot monitoring
Lane departure warning
Remote start
Lane keeping assist

Ideally I'd like to add all three but the first three would be most desirable.
I'd like to know what additional and replacement parts are needed, and if the existing wiring can accommodate the new/upgraded parts.
Am almost sure a software change would be needed as well - would a dealer do this?
Thanks
J