99 Solara with interior leaks

[kmcdaniel33]

Hi. I have recently purchase a Solara that was hit from behind (160k miles) and is now leaking inside, from what the previous owner says, this was not noticed before. The leak is on the front, drivers side, floor panels. It is the wettest on the left side, next to the door seal. How do i go about checking this and finding out were the leak is coming from? It does have a sunroof, but i have not noticed any leaking. No noticeable leaks when raining out or going through a carwash. going to try airhose inside and feel around for leaks on the outside, today. It just doesn't seem like an obvious leak at this point, ie-door jams or windows.
Also, recently, the engine is not turning over right away. When i turn the key, all the lights come on in the dash, but nothing happens. It happens about every 5th time i start the car. Yesterday though, i turned the key and a clicking noise started up and didn't stop, it kept clicking for about 45 seconds. I even took the key out of the ignition and it didn't stop. I went to go get some help and when we came back and i pulled the key out of the ignition again, it stopped. The battery seems to be fitted on the cables well and there isn't any corrosion. Also the starter was replaced a few years ago.
Any help with the above problems would really help me.
Thank you,
Kristi in Washington

[Got2XLR8 NYX]

Leak sounds like an AC drain got clogged and ur battery sounds like it needs to be replaced even if there is no sign of corrosion... how old is the battery if it is 2.5-3 years then its time to get a new one.