Outer Limits 4x4 Board

I am trying to find a earth in my elec. system and I seemed to have found it. However I found a black box with two wires going into it that go to the pos. terminal of the starter battery and two that go out into the wiring loom. The box has some writing on it but it is too faded to read. Would this box hold the fusable links?
After I fixed one earth, it was on my rear flood light that hangs off my spare wheel out the back, I still have a current draw of 0.4 amps on the starter battery with the igintion off. Would the digi clock, memory for the stereo and radios draw about this much current?

Any info would help.

Cheers

Hi
The black box is probably a cut out for an alarm....cant say about the v/d 0.4 amps is 0.4 x 12 = watts...or about 5 watts...that would probably be right.
Andrew

A pic is worth a thousand words, would be able to maybe identify it.

Cheers
Merv