leaky trunks? 95ish

im trying to help out a customer of mine. her cavalier i think is a 95 , its a 2 door. i sold her an amp and it died from condensation build up in her trunk. i couldnt find any noticeable wet spots but her amp gets covered in condensation. Do cavaliers around this year have any common trunk leaks that she should check out? please help i wanna help her out cause shes a sweetie. her trunk seal looked fine. thanks people