2004 2.5 crd Jeep Cherokee limited power mirrors

Hi hope you can help. I have had my jeep for just a couple of months now, about a month ago the nearside mirror stopped working it would not close or open, that was fixed by the dealer. Now the offside has stopped. Is there a blown up diagram to help me fix this myself?
i think you have to remove the mirror first to get at the motor housing but cant see how.
best regards
dave bell.