I’m going to run a sander over the corners to sort of round them a bit.
I'm no expert, but based on my limited experience, I would advise not using a powered sander. I would try a real high grit paper or 00 steel wool by hand first. The veneer is so thin powered may piss you off early in the game. You are talking about a small total area to sand so no real time difference.
Then I plan to adhere the front first, working from the middle with a laminate roller, then ‘attempt’ to roll the laminate over the rounded corners without cracking it. I’ve played with it some, and it’s pretty pliable. I think I can do with without using veneer softener. I hope so anyway. I’ll need to make a template for the driver and air port out of ¼ MDF first so that I can use it re-rout those openings in the veneer.
That sounds right. I did not make a template, and regret it as the fact was the worst part. I repeated that failure on my recent computer speakers - see how well I learn.