Possible leaks other than antenna holes?

[GranPrix]

Hello everyone, first post here. I just acquired an 11' PPV from the University of Michigan campus police with 68k miles. Luckily I was able to get ALL its service records from the day they received it till the day they sold it!

Anyway, are there any other possible sources of leaks other than the antenna and lightbar holes that anyone may be aware of? I have a massive leak at the right rear by the lift gate. How about the rubber grommets under the third brake light??

 

[2011SSVHOE]

Start pulling trim down, and get someone with a water hose and sit inside with a flashlight.

 

[GranPrix]

yup, that was my next move as soon as we normalize down here in Miami after irma

 

[Samuraj]

Between tailgate hinges, behind rubber molding .
Where mine was leaking , little silicon and no more leak
They do run wires to tailgate there