I learned this from an old Flea Marketeer. It has worked for me countless times on all of my cars, and sometimes amazes those who see it for the first time. I've already used this trick in my MO, so I know it will work in yours. Here goes.rharrack said:
Take the "S" hook end of your bungee cord and stick it in the latch where the clasp would normally go... Push it in until the latch clicks around it... If you have the proper sized "S" hook, you've just created a solid, safe hatch holder... I secured the other end of the bungee to a hole on the lower left of the MO. (I'd describe it better but it's pretty crappy under there right now)
To Undo: Make sure your doors are unlocked, and while pulling on the bungee hook, lift the hatch open handle. The latch will release the hook. If done properly, you're hatch is securely tied down at any level you need, and your "door ajar" light/warning DOES NOT come on. I use a round rope type bungee since the flat black rubber one that I tried had too fat of a hook. Good luck.