2010 ram instrument swap

hi guys!

i replaced my 4 gauge cluster to a 6.. everything works great except info display and the horn. info wont work till i get a new steering wheel .. horn not working is the main
problem i found some instruction on how to make it work but i lost the page and can't find now.. anyone done this swap and have info on making the horn work without running a horn button kit? thank you if you can help!

Even with the steering wheel buttons my horn ('08 Magnum) wouldn't work after a cluster swap. Used this app to program the buttons.

https://appcar-diagfca.com/en/

QUESTION! Can I change the mph shift points on a 545rfe with that? Can I add the +/- autostick to a 2007 Hemi Ram?