@cngw posted:Man...how old is my TIU? I am sure someone knows: Rev H1 w/ 4.2 software on it. Still ticking! I think I like my remote. I might even buy a PS3 engine just for grins - to say I am "modern."
If you want to use the WIU with that TIU, you'll have to upgrade the TIU software, the current version is 6.1. You'll also want that version on any remotes you'll be using.