Now I have some follow up questions that occurred to me as I began learning about all this stuff some 2 weeks ago.

1. Why is there both an OBC and EFC ? What do these acronyms stand for? What is the difference between the two? Is the OBC the same across all brands?

2. If you don't use a cable, does the RMIR program actually "do" anything, or is it just used as a passive application to help you display and read the functions? I'm assuming the software cannot actually perform anything with the remote if it has no connection to the remote.