If you are considering using spot mirrors like the ones you have a link to, that would be a mistake. Especially because you have a choice for a better wide angle mirror with Suma Performance.@sm1ke You nailed it. I do apologize, @David Paul for not being politically correct nor getting the point across accurately. It wasn't my intention to upset anyone.
I did hear back from Eddy: "We can only do either BSM or Turn Signal because the mirror isn’t big enough to have both on there".
So it seems as though it is a size issue and not a technical one.
If all else fails, I have options (https://shop.muthco.com/wide-angle-signal-mirror-2)
I have been using spot mirrors for as long as I can remember. I started driving legally in 1957 and when spot mirrors first became available, I bought them. However, they are useless and dangerous at night.
The reason I say that is because of their small size, the view in them is scrunched together in a very small picture. As a result, it is very difficult to discern headlights from other cars. It's hard to distinguish where the vehicles are and how many of them are behind you. That's where the Suma Performance mirrors really stand out.
The picture is much bigger and as a result, it is easy to determine the individual vehicles headlights and how far away they are.
I can't wait to get rid of the spot mirrors on my CX-5. Ever since my wife has seen the Suma Performance mirrors on my MX-5, she has been very envious. She drives our CX-5 more than half the time that I do. When I told her that Eddy was finally ready to take pre-orders for the Suma mirrors, it made her very happy.
My opinion of spot mirrors is just that, my opinion. They work fairly well during the day but at night, not so much. I would advise against you purchasing them. If they were much cheaper, I would say go ahead but I doubt that you have $130 to throw away. Especially because you already have turn indicators on your mirror body. Again, just my opinion and I mean no harm.