viper 690 xv in 90 cadillac brougham

Your alarm will come with pretty detailed instructions, so it shouldnt be too hard. You will have to splice into many of your wires in the drivers side dash, in the steering column harness, and the kick panel. The wiring for a 90 caddy brougham is as follows: WIRE---------color---------location---------------- 12Volts......RED...........Ign harness Ign 12v......pink..........Ign harness Ign 2........orange........Ign harness Accsy........Brown.........Ign harness Tach.........white.........at distributor Starter......purple........Ign harness Brake(+).....light blue....switch above brake pedal dome light(-).white........At any pinswitch or ctsy light trunk pin(-)..dark green...instrument cluster trunk release(+)..black....at trunk release switch parking lights(+)..brown...at headlight switch power lock(+)....light blue..driver kick panel* power unlock(+)...black......driver kick panel* *Positive pulse doorlocks

The install and owner manual can be downloaded for free at DEI website.

also there is a small pot on the shock sensor, im guessing its for sensetivity adjustement. which way is more sensitive? CW or CCW?

Look for the BROWN parking light wire low in drivers kick panel. The shock sensor you can mount on any flat surface or on a large loom of wires. If the shock sensor is upright, if you turn it CW it will make it more sensitive.Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

wire tie the shock sensor to a good wire loom under the dash, usually CW is increasing sensitivity and CCW decreases.   If you cant find the brown wire at the light switch, then turn on the parking lights only and meter the wires at the switch unitl you find one with 12 Volts on it, turn off the lights and see if it dumps voltage . If it does use this wire....    almost all older GM's use a brown wire for parking lights so it should be there.....Kevin Gerry

Certified Electronics Technician

MECP First Class Installer

Owner/Installer

Classic Car Audio

since 1979

thanks for the help. i should be able to take it from here.

i still cant fond the right brown wire. there is like 10 brown and light brown wires. i found one that had 12v when i turned on the headlights so i hooked it up but my lights didnt flash when i armed it. should i be looking for 12v when the headlights are on? i dont know how to turn the parking lights on. any more help?