Originally Posted by Barmanvarn
For me it wasn't that I was worried about returning to stock but that I would be cutting a hole that may or may not work should I ever change my tweeters to another make/model.
That's also a legitimate consideration.
I've sold one too many vehicles in the past with upgraded audio systems where I haven't seen anything like the value back for the components I've put in, so now when I do an upgrade I keep all of the stock pieces and ensure that I can return the whole thing to stock before selling it. After market audio systems can actually put buyers off or reduce the amount they're willing to pay because they think that you've potentially given them a bunch of electrical problems that they're going to have to deal with.