ok went out and looked under mine in the frnt seats there is nothign there to rattel other then the springs and the cabel that alows the seat to pull forward to allow back seat acses.

Makes me wonder fi you have a lose spring ot like a hog ring to close to one tha tis lose enough to rattel against the fram rail on the seat.

you might thry seeing if that cabel is ratteling also it has a stal end to it where it hooks up also.

past that i dint see to much to rattel I guess the next step is take a chain saw to it and find out LOL
but i undestadn what a rattel is like i had a penny in my door to day when i pulled it apart and it was driving me nuts till i figured out what it was.. so i gess i got paid for my job well done LOL

 

Mine seems to be the back of the seat (would you call it the upright part of the seat?). I can rest my arm with the wrist and lower arm on the console and my elbow against the side of the passenger seat next to the console and put a little pressure on it and the rattle stops.

And I'd have to vote for:
Austin - worse roads
Houston - most road construction, hardest town to get around in, and worse drivers
Worse roads in the US has got to be Louisiana! You can lose a whole car in some of those potholes

 

i will have to agree with LA but the others that seem to be good at tearing your car apart are in Minisota. they will hurt ya to

as far as the rattel it mgith be a seat sping in there also
or it could be where the bottom and top attach are losening up and it is radiatin up the back of the seat. ot you might have a penny in your seat also LOL

have no clue with that one
but good luck

oh and germany roads are not much better the LA etheir LOL

 

the pax seat in my 04 doesn't rattle