Welcome to the best and most informative HUMMER site on the net.
As far as your question goes: Get your woman to carry it.
http://elcova.com/groupee/forums?a=tpc&s=2826088551&f=5106011751&m=747109669
This one is offered here:
http://www.h2source.com/h2otc.htm
Looks good and I have not heard one complaint.
Rattles seem to be a common element with the SMA carriers.