Keys for 164Q

["Chuck" <no-ones@domain.elided>]

I recently bought a 164Q.  It came with 3 keys and 2 remotes.  There are two
big keys(with the keylights), and a small one.  Does anyone know which one
should be the master and which one(s) should be the valet keys?  Is there an
easy way to tell?  I have tried them on all the locks, and they all seem to
do everything.  I doubt that they all are masters(maybe?), but what else
would account for these results?  I'm lucky to have all the keys, but I
would like to know which is which.

Thanks,
Chuck

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