We go to WDW during the July 4th week each year, and we have always managed to get some kind of code, AP rate or discount.
This year however, seems to be different. We are going from 7/3 to 7/11, and for the first three nights, I can only get rack rate for a standard room. At first I was only able to get concierge with a code discount, but eventually I was able to piece together day by day the three nights I needed for a standard room.
While without a discount, it is still cheaper than concierge with a code. This is due to the fact that the resort seems to be sold out for those days, therefore no discounts can be applied. We are staying at the YC, but next door at the BC, discounted rooms for the same time period are available. (But DH wants the YC!)
The second part of our reservation, 7/6-7/11 I have a AAA discount, and I feel reasonably secure that I will be able to get some type of code or AP discount applied to that time period, as the resort is not sold out for then, yet!
If the resort that you want to stay at is not sold out or filled to capacity, you should be able to apply some code to your reservation. The problem is that right now nothing past 7/3 exists, unless you arrive on the 3rd.
What resort do you want to stay at? Call CRO yourself, and try using one of the codes available thru 7/3 listed on Mousesavers, and see if it can be applied to that resort. Then if you want to feel safer about getting a discount, move your arrival date up to the 3rd from the 5th. As long as you check in by the 3rd, you will get that discount for the entire stay.
From what I have been hearing, many will be checking out on the 6th after the July 4th weekend, so there should be some discount at that point.