Is anodized aluminum that bad when mixed with copper?

[epion2985]

mixing is okay

Not that simple. Weather its ok depends on certain criterion. There are three conditions that must exist for galvanic corrosion to occur. First there must be two electrochemically dissimilar metals present. Second, there must be an electrically conductive path between the two metals. And third, there must be a conductive path for the metal ions to move from the more anodic metal to the more cathodic metal.