Car Alarms: Boot release, earth source, wont pop

Question
I'm having trouble getting the boot release to work on my alarm. The alarm is an x-shield xs-800s. It has a -500 mA output for the boot/trunk release. I am using a relay to work the solenoid but its not working. I have set the relay up as discribed in this site, but still does not work. I have used a volt meter to make sure it is a negative output from the alarm and it seems it is. If I connect a negative wire from the chassis to the post on the relay which the alarm output connects to, it pops the boot/trunk, so the solenoid etc works ok. I've conneted my voltmeter to a positive source and used the alarm output an earth source and it gave me a reading straight away. When I pressed the button on the remote to pop the trunk it didnot change the reading. But when I connect the output back to the relay still nothing happens. This is really confusing me. How can I use it as an earth and get a reading without pushing the remote button but it still wont pop the trunk. Any Ideas?


Answer
Sound as if it need more punch.

Try bumping up the relay negaive.
Use the 500ma output on pin 86 of the relay.
pin 85 goes to constant 12 volts, fused at 10 amps,
pin 87 goes to chassis ground, and pin 30
goes to the boot/trunk pop wire you already
tested.

When you put a chassis ground to it,
it popped the solinoid.

That should increase the ground enough to do it
remotely using the (-) output designed
for trunk pop on the alarm.
Usually AUX 1 on a 2 or, 3 channel
system.

Let me know if this solved it.

Regards,

ALARMTEK