My wifes 05' Excursion doesn't have the hood insulation either, nor the turbo pipe insulation and didn't even come with an under hood light and it's an Eddie Bauer Exc, She complains that my 03' which has all kinds of insulation is quieter that hers (and it is) even in the cab the Excursion has a lot more noise. I noticed the newer models they started leaving the insulation and other things off. I am going to put the hood insulation on her truck and probably dynamat the inside to quiet things down.