ive had my da for about a year and a half, mabe 2. ive never had a problem with my sunroof leaking until last night. i guess it rained really really super hard. anyways, so my sunroof was completely shut. i walked out to my car and started it and drove it then braked for a stop sign and i swear it was like a water fall coming from my sunroof pouring onto my back and onto the front seats, it was soo funny but pissed me off so bad because its never done that before. i took it home, and dryed everything, check the seals then performed a leak test to find out that it does leak a little bit into the sunroof. i have no idea what needs to be replace or fixed so as a temp repair i bought some of that window weather seal stuff, its like a clear sylicone stuff and i rubs off but i put that stuff along the whole sunroof. you dont really notice it. but i havent had a problem since. anyone have a similar problem/experience or advice??
Did you check your drains yet?
same thing happenes to me… i’m not even sure what drains to check! i have yet to see a pic of their location 
Front right and Rear Left Wheel wells.
If you pour water over the sunroof, you should see water drain out from both of these locations. sounds like one or both of your drain hoses are clogged.
The Front right hose runs down the front right windshield pillar and down to the kickpanel.
The rear left hose runs down the left rear pillar and down to the wheelwell right next to the power antenna.
You need to remove the plastic trim panels and headliner to see / check / unclog / re-attach them.