He is correct. There is nothing special. I've done remote starts for years, and these cars are super easy.
This might help.
1987 BUICK REGAL 2DR SEDAN
Audio/Mobile Video
WIRE COLOR POLARITY LOCATION
Battery ORANGE (+) RADIO HARNESS
Accesory YELLOW (+) RADIO HARNESS
Ground BLACK (-) RADIO HARNESS
Illumination GRAY (+) RADIO HARNESS
Dimmer BROWN (+) RADIO HARNESS
Power Antenna PINK (+) RADIO HARNESS
LF Speaker (+) TAN
LF Speaker (-) GRAY
RF Speaker (+) LIGHT GREEN
RF Speaker (-) DARK GREEN
LR Speaker (+) BROWN
LR Speaker (-) YELLOW
RR Speaker (+) DARK BLUE
RR Speaker (-) LIGHT BLUE
Amp Location NOT LIKELY
Steering Cntrls NO
Speed Cntrl NO
Radio Security NO
Security
WIRE COLOR POLARITY LOCATION
Battery RED (+) IGNITION SWITCH HARNESS
Ignition 1 PINK (+) IGNITION SWITCH HARNESS
Starter 1 YELLOW (+) IGNITION SWITCH HARNESS
All Door Trigger WHITE (-) DRIVER'S KICK PANEL
Trunk Trigger LIGHT BLUE (-) AT TRUNK SWITCH
Hood Trigger N/A
Alarm Disarm N/A
Parking Lights BROWN (+) AT LIGHT SWITCH
Convenience
WIRE COLOR POLARITY LOCATION
Headlights-Lo YELLOW (+) HEADLIGHT SWITCH
LF Pk Lt Bulb BROWN (+) AT FRONT LEFT PARKING LIGHT
RF Pk Lt Bulb BROWN (+) AT FRONT RIGHT PARKING LIGHT
LR Pk Lt Bulb BROWN (+) AT REAR LEFT PARKING LIGHT
RR Pk Lt Bulb BROWN (+) AT REAR RIGHT PARKING LIGHT
Remote Start
WIRE COLOR POLARITY LOCATION
Battery RED (+) IGNITION SWITCH HARNESS
Ignition 1 PINK (+) IGNITION SWITCH HARNESS
Accessory 1 ORANGE (+) IGNITION SWITCH HARNESS
Starter 1 YELLOW (+) IGNITION SWITCH HARNESS
Anti-Theft Descript NONE
Neutral Safety ORANGE/BLACK (-) AT ENGINE CONTROL MODULE
Tachometer WHITE (-) OR VIO/WHT (-) AT COIL OR MULTI COIL PAC
Speed Sense DARK GREEN (AC) ECM,PASS.SIDE DASH,WHT 32 PIN PLUG,PIND1
Parking Lights BROWN (+) AT LIGHT SWITCH
Brake Lights WHITE (+) AT BRAKE SWITCH
Reverse Lights LIGHT GREEN (+) AT GEAR SELECT SWITCH
Horn BLACK (-) STEERING COLUMN HARNESS
Modules
WIRE LOCATION
Please select another category
Doorlocks/Windows
WIRE COLOR POLARITY LOCATION
Power Unlock BLACK (+) POSITIVE TRIGGER
PowerLock LIGHT BLUE (+) DRIVER'S KICK PANEL AT DOOR HARNESS
Note: Audiovox makes no representation or warranty with respect to the above information including its accuracy, completeness, or its freedom from third parties' proprietary rights. Audiovox disclaims all liability or responsibility for errors or omissions therein or any decision made by the recipient in reliance thereon. The installer must verify any circuitry with the proper test equipment prior to installation.
__________________