I posted an earlier thread looking for help installing a Viper 1002 alarm because I couldn't find an exact Fiero Install guide. Now that I have installed it...here is the complete install. I hope this helpful to anyone installing an alarm system in a Fiero and a no brainer for anyone installing the exact same Viper system. I am not a professional installer, so take this for what it is worth and please let me know if you see any problems. Everything that I hooked up works properly and the options I have in operation are as follows: Keyless entry, panic, siren, parking light flash, dome light supervision (comes on when doors unlocked and goes off when door closed and ignition turned on or timed out; also comes on when ignition turned off until door shuts and armed or timed out), automatic unlock/lock (doors lock when ignition turned on and unlock when turned off), keyless trunk pop, door/trunk alarm trigger, shock sensor, horn honk (with alarm only) and starter kill. This unit had some additional capabilities such as retained accessory power for windows/stereo and others, but the preceding is what I have done. In the following pictures I have removed the entire dash and center console which is not really necessary to do this install, but I had it out anyways since I just put in factory power locks and mirrors.
Primary Harness (H1) Connection Guide:
H1/1 Wiring Diagram:
An external relay was needed to make this work as seen in the picture.
H1/2 Wiring Diagram:
H1/3 hooks up to the red wire from the Revenger Siren. The black wire on the siren needs to be ground to the chassis.
Here is where I ran the wiring for the siren through to the front compartment:
H1/4 Wiring Diagram:
H1/5 needs to be ground to the chassis.
H1/7 Wiring Diagram:
H1/9 Wiring Diagram:
Auxiliary Harness (H2) Wiring Guide:
H2/7 Wiring Diagram:
Door Lock Harness (H3) Wiring Guide:
The Viper 1002 has an internal relay for the door locks and dome light so no additional relays were needed. This may not be the case with other alarms. If you need to hook up additional relays RELAYHELP.com is helpful.
H3/A needs to be ground to the chassis (I used the same spot for H1/5, H3/A, and siren)
H3/C,D,F,G Wiring Diagram:
This was the Wiring Diagram A in the Viper Manual: (+) 12 Volt Pulses Driving Factory Relays.
Immobilizer Harness Wiring Guide (Starter Kill):
The Viper 1002 also has an internal relay for the starter kill.
Immobilizer A,C Wiring Diagram (Normally Closed Circuit):
Note that the yellow starter wire is completely cut in two.
Since I now have power mirrors and someone who will go nameless just so happened to have my drivers side interior door panel (without the manual mirror hole) in their red Northstar Fiero when they ran it into a house, I made use of that spot for the LED light:
Here is the location of the unit itself:
It can still be accessed with the dash in by removing the left front speaker. If anyone sees any reason I shouldn't have put screws into whatever panel I have that attached to, please let me know.
A few miscellaneous items: I ran the receiver/antenna up beneath the driver's side pillar panel. The siren is currently in the front compartment, but I haven't decided whether I want to move it out or not (not sure if I actually want it louder). This install was done keeping all settings from factory on the Viper 1002.
Thanks to NeoTristan for correcting my use of wire taps. Look at
http://www.mmxpress.com/technical/connections.htm if curious how to splice wires correctly. I checked every single connection with my multimeter and everything is still working smoothly. I hope this helps cut down someones else's install time.
If any further questions or pictures needed, just let me know.
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~~~~Matt~~~~
Blue 87 GT needs paint!
Black 87 GT parts 
05 YZF600R
97 GMC Jimmy (For Sale $500)
