Dont know the current cost but back in 2014 we bought a Charger AWD and I waited til the factory 3/36 was almost up in 2017 (around 35,500 miles) and then reached out to other Dodge dealerships around the country to compare prices. I ended up buying the Chrysler extended warranty from a dealer in the midwest at 60% of what my local dealer wanted.
And I wanted the extended warranty for the same reason you are: all that electronic gadgetry. Just that stupid TV screen can be thousands of $$$.
So like you did when you shopped around for your car, shop around for the Chrysler warranty. And wait til your warranty is almost up, since you won't be using it for three years anyway - you'd just be paying the dealer extra money for a future benefit and financing it, to boot.
Back then they had the crazy option of a lifetime extended warranty from Chrysler. It was only a couple hundred dollars more than the 100,000 miles policy and get this - it covered it as long as it was registered in my name. The only ending point was if the repair bill would be more than the cost of the car. So if ten years down the line the transaxle goes, and it costs $9,000 to repair and the car is then bluebook valued at $8500, they pay me $8500 and don't pay to fix the car.
(Well, actually I was worried about the other ending point being my life and whether the Mopar Mafia would send out a hit on me after a certain number of claims over a certain span of years since the warranty was based on my life and not the car's)
And of course (knock on wood) we are at 101,000 miles now and the car has been the most trouble-free vehicle we've owned in decades. I think it's only been in the shop under the extended warranty for some electronic glitch with the bluetooth, and torn front axle boots. They replaced the full axle assemblies and all we paid was the $100 deductible a month ago. My wife loves that Charger AWD.