Thanks guys for the quick responses. I had initially planned on doing it myself then realized that some fluid would be in the torque converter still. Being a novice I didn't know a wet fill was even an option. So if I were to do it, I would choose to do a "wet fill" as 420agreenville outlined.

Now I know they do not make Mopar ATF +4 tranny fluid anymore, which I assume is in my transmission already. Would it matter if I mixed in another brand?

What would it mean if my transmission fluid is not "mostly red?" I would assume if it is blacker in color then I should just leave it because it would cause more harm?