A guy in Melbourne selling what he called a Harley GTS emulator. 

(Quote)This plug will allow you to run Apple Carplay or Android Auto on your 2019+ Harley Ultra Boom Box Infotainment system, without WHIM Module .

Can be used with any GTS system 2019-2021 (End quote) 

Now not  much good to me I suppose (2018 SGS) and not sure if this thing has been mentioned here before and I actually don't know much about the HD infotainment systems and how they work. Couldn't post link here as members may not have been able to open it anyway.  

Thought it may be of interest to someone if it hasn't been discussed before.  

Sells em for 50 bucks !!

May even be a forum member on here?

See pics.