CX-5 won't start after upgrading to CarPlay. Help!

I just successfully upgraded my 2016 CX-5 to carplay. Car started and then it didn’t, I jumped it, drove it and when I got home it still didn’t start. I charged it overnight and no luck. Any help?
 
Charged with what? A 2 Amp maintainer won't do much overnight when the battery is very low. Neither will a short drive. It would take hours. Maybe a 5 - 10 AMP/hr charger overnight would do it. But if that's the original 4+ yr old battery, it is probably at end-of-life anyway. This probably tipped it over into its grave.
 
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