Yeah, I think when installed mine there's at least 8 wires that need wired into the ignition harness alone, not to mention the brake, neutral safety, hood pin, alarm, locks, parking lights, horn, door sense and probably a few more. Not to mention the handful of resistors/ relay you'll need to get the locks/ lights/ alarm to function properly.
I happened to have a viper remote start system and bought a dball2 immobilizer bypass. I don't think I'd ever purchase a different one. About 4 wires to the vehicle (6 if you have a chip) and it takes care of the alarm, locks, sentry key immobilizer, tach, and door sense. That's a savings of 4 relays, 4 diodes, 4 resistors and the headache of finding all those wires! I think it actually sends most the info direct to the computer via the OBDII port.
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