life_w_vagabonds
Explorer
How bout on your spare tire. Roll it up to fit inside the rim. On the side closest to the vehicle so it is in the shade and out of site. A couple compression straps, zip ties or an old shoe lace to hold it in place. A wine cork or similar to keep the dust out. Out of site and out of the passenger compartment. I've had a siphon on my shopping list for a while and was thinking of trying it there.