that is a sweet sub, funny he even mentions that it's priced above NADA. Good luck getting financing on something over book. So he's limited to somebody with a huge chunk of cash to spend.
Wait until he drives that Excursion for a while, he's going to regret giving up the Suburban. My sister had a V10 4wd Eddie Bauer super luxury Excursion for a long time, it had to be one of the worst riding vehicles I have ever driven. And I actually like a truck-like ride.