Ok ive got this chip on my pastnger door and there is a little bit of rust on it. then i looked in side my driver door and saw a line of rust water on the beem that goes through the door. does any one have rust too and how can i fix it...my self.

note: the chip is the only rust in the picture. that other stuff is was white grim from the road

 

I have had a chip that rusted before...

https://my350z.com/forum/maintenance-and-repair/76095-paint-chip-rust-your-diy-recommendations.html

Just used some rust remover and touch-up paint. Good as new. Almost