Yeah it took me awhile to find my leak...first changed the boot rubber, then scrap, weld and paint in between rubber and rear wind shield but still had water. Found out later that water was coming in from the rear wind shield coz the sealant was hard and cracked..so water travelled from the mini longkang on the hood straight into the rubber lining of the rear wind screen following C pillar and into the boot..Must do CSI work only can find la..ask someone to spray water and you sit in the car and crawl around the boot with a torch light lo...
hope it helps..