My "strange" TF...

Hi, your photos look like you have quite a high spec car.
The "snowflake " button is for air conditioning and the next one is for a heated rear screen. 
You also have the Tbar with speaker grills, I would have a look behind it to see if you have the speakers and the associated wiring. 
Nice car and welcome to the forum. 

ooops
forget the questin about the "grids"... they are certainly tweeters.... I am a stupid man and I had misunderstood certain images I had seen.... I will search in the forum for how to make them working

but I have another one button for air conditioning... 

First up the switch question........I assume you are referring to the one with the odd shaped button beside the window lift switch, well who knows what is going on there as that switch imust be from some other car in the MG/Rover catalog as it fits the the hole but the push button doesn't match the others, you'll just have to press it and see what happens!
If it is as I suspect a "foreigner" the symbol on it may not match it's function.

Those speakers in the Tbar aren't tweeters they may well be 2 way or even 3 way coaxial speakers that have integrated tweeters but I can't see exactly what they are with the covers on.

 When it comes to wheels there are many factors to consider.
Yes the wheels should be either 15" or 16" diameter to meet factory specs (your wheels are 16" diameter) but the PCD (pitch circle diameter) concerns the stud pattern, our cars have an unusually small PCD
which can easily (when I say "easily" it is relative to your mechanical ability and understanding) for someone with a fairly good mechanical aptitude and the necessary equipment, to change with a bit of buggerising about. That would equate to about less than 1% of the general population that would have the skills, knowledge, and equipment to do it.
There are other wheel sizing factors that come into play such as offset, rim width, and centre spigot diameter.
Some people seem to think wheels are just wheels but that generalisation is an over simplification that couldn't be further from the truth!
 

Your odd switch is, as the chaps point out, is air conditioning, I think it’s the recirculation button & the one fitted is from an f. There are tf version on eBay but they could be a bit expensive. Mind the cost of things is relative to bank balance.
Cobber’s insight to wheel sizing is correct as usual, the point I was making about wheel choice is to do with style. The variables like off set, centre spigot size etc have to be comparable, once those are verified any fancy wheel with the correct PCD will fit your car & “work” in a predictable manor.
You may find wheels with the correct PCD but other perimeters outside those recommended & you are asking for trouble.
I have a set of wheels that fall outside those recommendations & I’m going to have to do some modifications.
For me this isn’t a worry as I have the kit to modify one to fit the other.
Modifications associated with safety related components should be approached only by those who have the appropriate skills & the appropriate tools.
M

The ❄️  button is is certainly air con and could be from a 200 or 25. It probably just needs a bit of fettling to get a better fitment. 

Well the OP did mention that they already have an air cond switch, so it's entirely possible some random A/C switch has been repurposed and stuffed into the hole to operate some other function.
And now that Airportable has mentioned it, I can see it is from an early F, they had the switches laid out in 2 rows in a horizontal orientation and the surrounding escutcheon panel was more recessed  to allow for a switches to fit flush within the escutcheon. no amount of fettling will ever make that look 100% right, it's a case of ignore the poor fit or to replace it with the correct one, if it bothers the OP's sensibilities to much to leave it. (I know it would offend me on one of my "nice" cars, where as on my work ute I couldn't care less, in fact the more random and mismatched the better as I seem to have achieved the full rat mobile look by age and evolution with that one)
 

I'll shut up now and leave the advice to the experts. 

R40MGF wrote:

I'll shut up now and leave the advice to the experts. 

 

Nah, you're OK, I didn't mean to offend you, everybody's input is always welcome.

Absolutely not, your contributions are as important as the next man & more important if the next man is a tit, which these days is probable.
Everyone views life through a different lenses & the way that is interpreted is a matter of how your brain works.
My brain works in an odd way, I notice things that may seem irrelevant & that observation gets chucked in a department labelled junk. My trouble is distinguishing junk from the important. The important I tend to rapidly forget, however I can’t forget those things that I don’t need to know.
Do you remember your aunties telephone number from when you were six?
Local sub exchange 498 as you ask!
M

Or your Dads first number plate ?
HTY 337

GalvanoBlu wrote:

ooops
forget the questin about the "grids"... they are certainly tweeters.... I am a stupid man and I had misunderstood certain images I had seen.... I will search in the forum for how to make them working

David Aiketgate wrote:-
They are full speakers behind the seats and should already be wired up. The tweeters are in the doors at top front of the door card.👍