if i can do it, you can
someone here said the ford cd was on ebay for $1 - and it was - shipping was like $2 - best bargain i ever came across
the cd has all the electrical schematics - understand the concept of 'always hot', 'hot in start' and 'hot in run' - i installed the viper and did not cut one wire to install it - though i admit i did NOT hook up the rear window defrost - the 12 volt lists the other information you will need
supplies are automotive wire, wire ties, wire spades and those t connectors - you tap several circuits like the brake circuit, courtesy light circuit and a couple of wires to the rap module
i had a verizon hosted web site that had detailed instructions, but i dropped verizon in texas when i sold that house
use care when clamping on those t connectors and use the right size so it won't cut the wire - its a fun project and you will learn how simple the wiring harness is - after my install, i installed the autolamps, moved my radio to the accessory delay circuit and added several led courtesy lights
its time consuming - if its not your cup of tea to play with installing gadgets, i'd say $100 for the install is a bargain - though i have heard several complaints about best buy installs
reminds me that i bought the window modules and never installed them...