I just bought a new Mazda CX-5 2022 without heated mirrors. Howmuch it will cost for me to replace them with the heated mirrors and what kind of store/shop will do that for me? Thank you.

 

I am with you on the heated mirrors, my other complaint is no XM radio. The heated rear seats is not a big deal and not sure what you mean about steering assist.

 

I am in the same boat. I just noticed the other morning that my 2022 CE doesn't have heated mirrors. As for Sirius XM, that isn't a loss to me, I use Spotify exclusively most of the time, occasionally will listen to a local FM radio station.

 

Earlier models it was a matter to run a couple of wires to the mirror and replace glass, new '22 CX5 model have CANBUS modules that might need programming.
As for Sirius XM radio you can always use the app with Carplay/Android Auto and it's exactly the same as with the onboard receiver.