2005 Chevrolet Classic, Security Wiring Diagram

I'm looking for an wiring diagram for an 2005 Chevy classic. The only diagram i can find are for the Chevy malibu. I'm not looking to remote start, but only car security. Any relays needed with this vehicle?Marcus Jones

Vehicle uses a regular key.Marcus Jones

12 Volts     red (40A)     +     ignition harness      Second 12 Volts     red (30A)     +     ignition harness Ground     (chassis ground)                     Starter     yellow     +     ignition harness      Ignition     pink     +     ignition harness      J1850     violet     data     OBD-data link connector, black 16 pin plug, pin 2           Power Lock     white (close doors to lock with single pulse)     -     driver kick, door harness           Power Unlock     same as power lock     -1500 ohms                Lock Motor     gray     5 wire     driver kick, door harness           Driver Unlock Motor     tan     5 wire     driver kick, door harness           Passenger Unlock Motor     tan     5 wire     passenger kick, door harness           Parking Lights     brown     +     passenger kick, harness to rear           Parking Lights -     white     -     BCM below passenger dash           Headlight     dk. blue     -high curr     headlight switch           Left Front Door Trigger     lt. green/black     -     driver kick, door harness           Right Front Door Trigger     lt. blue     -     driver running board, harness under driver seat           Left Rear Door Trigger     same as right front door trigger                     Right Rear Door Trigger     same as right front door trigger                     Dome Light     white     -     underdash light           Trunk/Hatch Pin     orange/black     -     trunk light           Trunk/Hatch Release     black/white     -     release switch           Trunk Release Motor     black/white     +     driver kick, harness to rear           Tachometer     white     ac     ignition control module           Fuel Pump     gray     +     driver kick, harness to rear           Horn Trigger     black     -     steering column looks like you will need a relay for teh lock/unlock since its the same wire with a resistor33 years as a installer now just a retired old guy. Favorite thing to install/topic are remote starts/car alarms. Stop using test lights!!!

I have an 2005 chevrolet classic. I looked up the wiring diagram and I am trying to locate the horn wire, which the wiring diagram states it is a black (-) wire located in the steering column. I disassembled the cover from the column and looked under the dash but can't find the location of my horn wire. The parking lights wire is said to be a brown(+) wire in the passenger kick panel. There are 6 brown wires in the passenger kick panel. Could someone guide me in the direction to finding the horn and parking lights wires?

What kind of relay do I need for the lock/unlock since they both use the same negative wire?

If you are not doing a viper you can still use the 451m and hook it up like- small plug with green blue red-cut off harness and connect green to lock output of alarm blue to unlock output of alarm red to constant larger wires blue/black with 1500 ohm resistor to cars lock/unlock wire larger wires green/black to same wire with no resistor added purple and purple black to ground and white/black brown/black not used https://www.amazon.com/s?k=451m&ref=nb_sb_noss_133 years as a installer now just a retired old guy. Favorite thing to install/topic are remote starts/car alarms. Stop using test lights!!!

The 451m relay was not needed.