first off , is the battery ok ?? does it hold a charge??

to test for parasitic current draw, set up the multimeter to ammeter. disconnect the neg battery cable and hook 1 lead to battery , the other to the cable, ..
if there is a draw of more than .030 amps , start pulling fuses 1 at a time till you find the circuit with the draw in it ..

if your car has shoulder belt retractor, you need to wait about 3-5 minutes for the timer to shut off, othrwise you get a false reading..
also make sure everything is turned off,

Once you find the system causing the draw , then you have to diagnose which part of it, is causing the problem


http://www.in.honda.com/Rjanisis/pubs/SN/A020900.PDF

I found the above link. it has pics , you will need ADOBE reader on your computer to view it