adding trunk release to alarm help

i have an Alpine SEC-8028 in my car, and I was trying to add a trunk release, but I'm having some trouble figuring out the wiring.  the alarm harness has an EXT1 output signal wire, that goes to +0.6VDC for about a second when I press the remote button.  I thought that I just need to hook that to a relay to hook in the trunk release, but the relay does not respond.  is the voltage too low?  what is the correct wiring for this?

thanks for any help.

dave.

a single press activates EXT1, a press and hold activates the VALET mode.

similarly with the other button on the remote, a single press activates EXT2, and a press and hold activates EXT3.

i tried all three EXT hookups, but all do the same thing.