Harder, won't be an issue, fact is there are people willing to pay and the only hard part will be in the engineering process. When there's demand in a market with customers willing to pay good money, supply usually comes through.
It would be a smart move since all these builds are marketing opportunities for them, even though they are spending a lot, at the end of the day they are making clarion products a priority in the vehicle.
So something as simple as upgrading speakers might be what they do along with other little incremental improvements.
That's what I was thinking, with the way cars are built today there's a lot of downsides to yanking out some infotainment system to put in a double din, Lol. Much unlike days before infotainment. Before people would immediately start considering metra kits and aftermarket double dins. Now the conversation has changed over to speakers since it's about the only thing worth changing these days.