98 cadillac seville, alarm/remote start

First of all, if it really is a 98 STS, the ignition switch is on the dash and accessible by removing the radio - don't disconnect the radio...just let it hang.

You should have a Pink and a White for ignitions, an Orange for accessory and a Yellow for starter.

The 97 model only has the Pink ignition but will have two accessories - Orange and Blue.

The car could disarm when it sees the signal from the transponder bypass and the ignition from the remote starter but it will emit a short horn honk. You'll run into problems if you want to unlock using the remote starter keyfob because the car will not get a "disarm" pulse. To get around this, connect the disarm wire of the remote starter to the light green wire in the driver's door that goes to ground when you turn the key in the door cylinder to the unlock position.

Here's what you should see:

Two Orange wires: Battery +

Two pinks in same pin: Ignition

One Brown (may be Orange): Accessory

One Orange: Ignition

Two Yellow in same pin: Starter

One White: Shows power on ACC and IGN and START

You'll also see the Passkey wires: Yellow, White, Black which go down to the Passkey module below the ignition switch down near center console.

There's also the keysense circuit comprised of a BLACK/ White (ground) and a Light Green (keysense).

You don't necessarily have to connect to any or all the wires I mentioned, I just gave them for reference to guide you through the spaghetti.