Newtotherx-7

My trunk randomly opens either whil parked or while driving how do I keep it from doing this and I disable the switch, and if so where would the switch be in a 1992 RX-7 FD3S

Sgtblue

iTrader: (16)

If you have an FD, the hatch was known to get out of adjustment over time causing an annoying rattle. There is adjustment on the lower mechanism for the hatch. If I had to guess, someone adjusted yours too low in an effort to stop the noise and now it's not latching completely. IIRC, a couple of 10mm bolts. Loosen and move the latch assembly up a millimeter or so at a time. You don't want it to be too loose or the rattle problem might return.
There is no switch. Just the release lever next to the driver's seat on the floor.