View Full Version : First time installating car alarm, need help

12-13-2008, 12:13 AM
here is the manual on the scytek astra 777 alarm
and this is the wiring diagram for my 2000 ford explorer
i already mounted the brain, the siren and the shock sensor.
also wired them.

i haven't wired the horn, parking lights and the doors. i need help on this.
the wiring is kinda confusing.

for the horn, it says that the wire is negative and must use a relay, how will i wire a relay with a negative wire?
for the parking lights, do i just choose which wire polarity i will hook up from my car and just set the jumper? how will i know if the parking lights exceeds 10 amps and needs a fuse?
i'm totally confused on how to wire the doors. don't need the triggers just need the unlock and lock feature.

i **** at this..
thanks in advance to anyone that can help!

12-13-2008, 12:15 AM
Good Luck :crap:

s Beatz
12-13-2008, 12:16 AM
Lmao i would never recommend installing a alarm on your own unless you have someone that knows how to helping you, those things are a *****! Lol..

12-13-2008, 06:10 AM
the alarm has a neg output for the horn=no need for a relay to horn, just direct connection

parking lights will be fine with a direct connection with the Scytek

why no door triggers? the shock sensor won't be much of a theft deterrent just on its own. hook up door triggers to domelight, i would also add a glass breakage sensor at the minimum.

as far as doorlocks, well you sir have a pain in the *** vehicle for door locks. this truck has what is the GEM module. the doorlocks in essence "go to sleep" and can cause false triggers all night long.

you will need to pick up some diodes and a use the bottom diagram.

the BCM is located to the left of the radio behind the dash.