I had the same thing happen recently on my Subaru. Make sure your battery is fully charged. Before intalling take out all fuses. Hook up your multimeter to the installed battery and take a reading. It should be steady at a little over 12v. Install the fuses one by one carefully checking the voltage after installing each fuse. I had a draw on my power door lock fuse.

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'85 300SD (formerly california emissions)
'08 Chevy Tahoe
'93 Ducati 900 SS
'79 Kawasaki KZ 650
'86 Kawasaki KX 250
'88 Kawasaki KDX200
'71 Hodaka Ace 100
'72 Triumph T100R