I’m sorry. I didn’t give a complete answer. I have the wired Tuni Firefly although I have an older version than this.
TUNAI Firefly LDAC Bluetooth Receiver: High Resolution Wireless Audio Bluetooth 5.0 Adapter with Audiophile USB DAC 3.5mm AUX for Car/Home Stereo Hi Res Music Streaming; Auto On, No Charging Needed
https://www.amazon.com/dp/B01HDO66NK/ref=cm_sw_r_cp_api_glt_i_8A33PPXWX410F53MHPP0
It works good and usually connects whenever I start the truck. I have gotten used to connecting manually when it doesn’t. I have a nice cable that I ran back to the console and tucked under the edge. Its pretty well hidden. See post 2919 for what I did.
https://www.tahoeyukonforum.com/thr...nnbs-gmt900-tahoe-yukon-today.44151/page-2919
Your 2012 may have the separate satellite radio receiver in which case you could use the crux adapter. I can’t use that on my 2013.