Water Leak in My Coupe
 

hey im having issues with water getting into my trunk and rear passanger seat when it rains, i just noticed it today when i went to start my car .. Dont know where it could be coming from .

Take a garden hose and have a friend drench the outside of the car on the roof, rear window and trunk while you sit in the car and see if you can find where it's coming in...

i think it may be my firewall

Highly doubt it could be this.

the reason i sat this is because theres a puddle of water in both my front and rear seat but not on then... and the previous owner wired it for subs but had no clue what he was doing.. not sure though my door cant be leaking theres no water around it . my rear winsheild seems to let some water in but not much.. have no clue :S Im changing my weather seal on my door its really hard to test because its winter...

COuld it be my weather strip ? Its a huge puddle of water .. Ive heard of it being a drain hose aswell :S help quickklly the water keeps freezing over to ice..