An old def guy with many CDs and LP playing on old analog with big Bose speakers wants ease of setup/use wireless system. Although much to select from returns to the vital few 95% of time
I think it would help if you define what you are looking for, actually.. It seems you have all the equipment already in place. Which link you want to make wireless? Or you want to introduce another wireless "input" and/or "output"?
If you want to add internet radio and streaming services to your existing system there are a few ways to go.
You can add an Amazon Echo Dot to your old gear. Connects to any unused line level input. You can control it with the app or by voice. Turn the system on, select that input, and leave it on. https/www.amazon.com/gp/product/B01DFKC2SO?ref=ODS_HA_B_surl&tag=googhydr-20&hvadid=243982124390&hvpos=1t1&hvnetw=g&hvrand=17263702747131048343&hvpone=&hvptwo=&hvqmt=e&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9004455&hvtargid=kwd-296997964291&ref=pd_sl_4ee0m9kexv_e
Another option would be to add a Sonos Connect or Denon Heoslink to the system. The Denon can even be used as an audio server and play HiRes audio files from a USB drive. You can rip all your CDs as lossless files and play them without touching a disc. Denon and Marantz make receivers with Heos built in.
Both Sonos and Denon Heos make stand alone wireless powered speakers and soundbars. They also make units with amps built in so you can use your own speakers. They can also integrate with Alexa for voice control. https/usa.denon.com/us/heos
https/usa.denon.com/us/heos
If you wanted to "spin" your vinyl you can use your old TT with a phono preamp and connect that to the system.
A lot of options. Depends on the your budget, needs, and quality of sound you want.
If you don't want to set it up yourself any custom installer or better audio store should be able to give you a turnkey set up.