You got more balls than i do :) I am confused what do you mean by ignition switch? typically on a remote starter you tap into the wires and you can do that under the column cover or meet the harness where it goes to the underdash. I want a remote starter but with the electrical system in the vous its a P.I.T.A. you got the passkey you gotta have an extra one, the alarm bypass. and other stuff. here is a list i found that will tell you most of what you have to do RENDEZVOUS 2002 -2003 GM's PK3 TRANSPONDER ANTI-THEFT System, Requires 791 Module and Extra Ignition Key PART COLOR LOCATION DIAGRAM
- 12 VOLT CONSTANT----- ORANGE (+)..... IGNITION SWITCH HARNESS
- STARTER--------------------YELLOW (+)..... IGNITION SWITCH HARNESS
- IGNITION ------------------PINK (+).......... IGNITION SWITCH HARNESS
- IGNITION 2----------------GREEN (+) ...... IGNITION SWITCH HARNESS
- BLOWER 1---------------- ORANGE (+)..... IGNITION SWITCH HARNESS
- PARKING LIGHTS ( - )--- LIGHT BLUE(-).... @ HEADLIGHT SWITCH
- POWER LOCK-------------RED/BLACK......... BCM, PINK Plug
- POWER UNLOCK---------RED/BLACK .........BCM PINK PLUG
- LOCK MOTOR WIRE -----GRAY (+) ........... @ BACK of FUSEBOX
- DOOR TRIGGER ----------BLUE/WHITE (-) ....@ BCM, PINK Plug
- TRUNK RELEASE--------- WHITE/BLACK (-).....,@ BCM, GRAY Plug
- HORN---------------------- BLACK (-)............... @ STEERING COLUMN
- TACH ---------------------- PURPLE/WHITE ..... @ IGNITION COIL
- BRAKE---------------------- WHITE (+) ............ @ BRAKE PEDAL Switch
- FACTORY ALARM DISARM--PURPLE (-) ......... @ BCM, PINK Plug
NOTE *1 this vehicle uses a 1-Wire Door Locking System, a (-)Negative thru a 470 Ohm will LOCK and a Straight (-)Negative on the same wire will UNLOCK. Some units will also require extra Relays Part #775, See DIAGRAM. NOTE *2 the BCM is located at the FRONT of the CENTER CONSOLE under the RADIO.
