Chipless key starting with ews off?

I've been searching and I can't find an answer... Can you start your car with a cheap spare with immo off in the dme?

Reason I ask is that I absolutely despise giant crap hanging off my keyring. And as nice as they are, our diamond keys do still count in my book.

If it doesn't work that way, I'll just have to deal, I suppose...

Chipless key starting with ews off?