so after looking for a while i found some perfect clips
in lieu of the 2.36 each bmw ones
https://www.amazon.com/Toyota-Panel-Retainer-90467-10188-Sienna/dp/B0040CTTH4
these snap in exactly and very tight
just take out the seat -which is usually ruined anyway
you just need to use a set of diagonals and cut a triangle in the base
so you can roll them in.
in lieu of the 2.36 each bmw ones
https://www.amazon.com/Toyota-Panel-Retainer-90467-10188-Sienna/dp/B0040CTTH4
these snap in exactly and very tight
just take out the seat -which is usually ruined anyway
you just need to use a set of diagonals and cut a triangle in the base
so you can roll them in.
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