Hello all, first of all sorry if this question was already asked, but I wasn't able to find it using the search option.

I have an 2007 Astra H with a BID display and activated BC. I would like to change that with a GID, but I don't know which version.
From what I've heard there are GID displays with 2 lines and 3 lines of text, but how can I tell which one is which, and which one can be fitted in my car?
I would like to buy it salvaged from dissasambled cars, and I'm unable to tell just by looking at the producer and serial which one is the 3 line one and which isn't, moreover, can a 3 line display be fitted in a not climatronic car (just manual AC)?

Thank you all in advance and have a nice day!