I keep mine tucked in next to the space saver spare, easy to get to unless the trunk is full. As for where to buy one, shop around and get the best price.
Mine just lays on the floor right behind the driver's seat. Easy to grab and go. I don't want to be f...ishing around with any latches in case it's my car that's on fire. Been there, done that. Not a happy day.
Thanks for the replies. Had a small fire when the power steering hose blew. Pin hole that shot fluid everywhere and specifically on the headers. Luckily I was at home and next to a water supply. Burnt plug wires, standoffs and oil pressure gage hose. No damage to any engine parts.
not used mine yet on my car , but had two units, got to use one on a car that caught fire outside my house at the stop sign close by...he was happy (and lucky) I had one!