Our 2007 Azera door locks will not unlock on all doors except the driver which only unlocks every once in a while. The issue did not begin until a recent battery change. I am guessing it is the door lock relays, but cannot find them. I have pulled all relays on the back of the fuse panel. I have checked all fuses inside the car and under the hood. Can anybody tell me where the door lock relays are located?