I think if you're going to replace the dash speakers, just go ahead and mod the brackets at a cost of $0. It's not like you'll ever go back to the crappy stock speakers. Most people use the explanation of "If I sell it I want to go back to the stock speakers and not give the new buyer my $XX high end stuff". That's understandable, but seriously, you could just pull your high end stuff and drop a decent pair in for $50-75. It could only help in the sale.
You're call, but $50 is a fair clip for something you could either make yourself for under $5 or just mod the basket at a cost of $0.
