try grounding it to just a plain ground, that should do the trick.
it should make it think the ebrake is always being grounded.

if that doesnt work hook it to something that remains with constant signal (such as your lighter or alive wire on your car radio)

the whole objective is it to either see a signal (electronic pulse) or to be grounded, one of the two will work.

i reccomended the cigarrette lighter cause its a cheap fuse incase it ever goes out!.

g/l