just a quick update, i have tried numerous products as suggested on forums, and you tube videos, but the one that works for me eventually is GT85...this has stopped all the squeaks and rattles, and can be used on protecting underbody springs and joints. happy days.....only £2.75 a can.
try it and report back.
sprayed all around door seals, including top end of widow seal and a quick light wipe off.