HELP! Some sort of rattle

[First Car...P5]

There's been this rattling sound coming from the right front wheel well and I don't have a damn clue what it is. I've gone under and looked around, but just don't know. It sounds like two plates bumping against each other and it's only when the suspension's under load. Any suggestions to what it is?

 

[patmaz]

ball joint,or tie-rod-rnd,or stabilizer,but if its on load,i d go for the ball joint...