Long story short, the drain holes in my Miata seem to have gotten clogged over the weekend and I only realized this today (!) after discovering a bit of standing water under the passenger seat.

Anyhow, I've tried cleaning the drain holes behind the seatbelt pillars but to no avail and can still hear that dreaded sloshing noise. There are a couple of threads on Miata.net but none seem to pinpoint the exact location of the bloody drain holes. Has anyone had any experience with cleaning these? Where the heck are they? I've shoved my face under the car a million times but can't seem to find them.. please help! Is hoisting the car necessary to unclog those holes?