Thanks for the reply.
I'm getting a new battery tomorrow/tuesday so I'll hope the fob isn't buggered. Otherwise I found a company that can recondition the old fob or programme you a new one for a decent price. Better than hauling it to a garage anyway.
I took off the door card and checked it all out, couldn't find any issues, tried entering the EKA by moving the switch myself to ensure it was going back to center etc. Tried it about a billion times but I think it's just not registering.
So hopefully fob works, if not, recondition fob (cheap), if that doesn't sort it, new fob programmed - £70 total.
All fun and games, seeing as I have the door card off I might install the tweeters I bought.