where are the sunroof drainage lines on the 2004 camry

They are usually locates in the corners of the sunroof. Some folks use compressed air to blow them clear. That procedure MAY blow the hoses loose from the drain ports. Some folks blow air into the out port side of the system located under the car at the B pillar . Again caution needs to be used. Inspect these drains FIRST by opening the sun roof all the way. A sunroof repair cost big $$$....be carful.