How to get to those wires. 2003 grand am

Sorry, I got brain freeze............If your ignition switch is on the dash, left of radio:Remove front dash panel over radioRemove RadioRemove 2 10mm bolts holding Ignition switch to dashManuver and pull Ignition switch thru radio opening ****  U may need to disconnect Ignition Park Lock cable from shifterMO

Don't Learn from Others Mistakes

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This is how I do these & Malibu's, but I am always open for anything else

P.S. Just remember, Disconnect battery and don't re-connect until U R SURE of ALL connections & re-install of components:Pop off Key cover, Radio Panell pulls off, 3 9/32 screws hold radio inHow ever ,U might want to try , civicdownlow idea, I have not. 

Constant 12 volts	RED	IGNITION SWITCH HARNESS
Ignition 12 volts	PINK	IGNITION SWITCH HARNESS
Starter	YELLOW	IGNITION SWITCH HARNESS
Dome Light	YELLOW (-)	DRIVERS KICK *
Trunk Pin Switch	ORANGE / BLACK (-)	DRIVERS KICK BODY HARNESS
Parking Lamp	BROWN (+)	AT LIGHT SWITCH HARNESS
Power Lock	WHITE	DRIVER KICK
Power Unlock	SINGLE WIRE SYSTEM	PANEL

* Opitional Door Triggers Located At Body Control Module Under Passenger Dash. L GREEN/ BLACK (-) Covers Driver Door, L BLUE (-) Covers All Other Doors. Diode Isolation Needed, Cathode (Band) Side Of Diode Faces OEM Wires. Single Wire Resistor Door Lock

Accessories
Window Up	D\ D BLUE P\ L BLUE D\ D GREEN P\ L GREEN @ SWITCH IN DRIVERS DOOR
Window Down	F/ BROWN F/ TAN R/ VIOLET R/ VIOLET
Ign Key Warn	DARK GREEN (-)	STEERING COLUMN HARNESS
Trunk Release	BLK/WHT (-)	IN DRIVER'S KICK PANEL
OEM Horn	BLACK (-)	AT STEERING COLUMN
Headlights	YELLOW (+)	AT HEADLIGHT SWITCH
OEM Alarm Arm
OEM Alarm Disarm

 Negative Pulse Trunk Release

Remote Start
Tach Signal	VIO/WHT OR WHITE	TOP OF ENGINE ON COIL
Ignition #2	GREEN	IGNITION SWITCH HARNESS
Ignition #3
Accessory	ORANGE	IGNITION SWITCH HARNESS
Neutral Safety	ORG/BLK (-)	BEHIND DRIVER'S DASH LEFT OF COLUMN
Brake Light	L BLUE (+)	AT SWITCH ABOVE BRAKE PEDAL
Reverse Light	LT GREEN OR GRAY	IN DRIVER'S KICK PANEL
Rear Window Defrost

 G.M. Passlok II Diagram. Pass Lock Wires YELLOW And BLACK/ WHITE (Has Been Reported As BLACK Instead)

MO

Don't Learn from Others Mistakes

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I'll second the remove instrument cluster idea. I dunno about you, but there is no way I can get my hands into the radio opening that easily (maybe if you have wee tiny girl hands...) I've done this for a few years now, and find that it adds no extra time to the install. Usually there are 2 phillips on the bezel, remove upper column cover, then 2 7mm that are revealed at the bottom of bezel. Remove bezel. 2 more on the upper corners of cluster, tilt bottom of cluster out, then left side first out the opening, connector for cluster on right end. Pull radio trim, 2 10mm, then ign cylnder comes straight back and over towards centre of dash opening where cluster used to be. There's almost enough wire that it can come almost a foot over. You can also get parking lights at the switch in column nice and easily too. Covers Malibu, Grand AM, Alero, Intrigues, and any others that the bottom dash panel is non removable. Makes life so much easier! Gus Wherever I go, that is where I end up......

<<<there is no way I can get my hands into the radio opening that easily (maybe if you have wee tiny girl hands...) I've done this for a few years now, and find that it adds no extra time to the install.>>>There is no shame in this stuffBut I am 6' 3" 245lbs and I guess I better look at my hands, after 30 years of Installs they may have shrunkMO

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The easiest way is to not go near the radio for most wires. Most of the wires you need for an alarm/RS are in the drivers kick panel/underdash in a single harness. There is a harness high up running into the firewall. If there are two harnesses, they are in the harness that is higher up. Regardless, neither are hard to access. In that harness you can pick up the following: Constant: Red (+) Ignition: Pink (+) Accessory: Orange (+) Accessory 2: Brown (+) (Not needed for RS!) Starter: Yellow (+) Park Lights: Brown (+) Horn: Black (-) Brake: Light Blue (+) As mentioned ALL the wires above are in a single harness in the drivers underdash area. The ONLY wire you need to run to the radio is the ignition 2 wire (green @ ignition harness). If you use a passlock 2 bypass such as a PLDATA, it simply connects to the underdash diagnostic plug. Otherwise you would need to run wires up to the ignition harness for the passlock wires. In doing so just remove the radio (feel free to unplug it, get it out of your way) and reach down and pull the ignition wires up a bit. There is enough slack on them to work easily once you cut all the tape away. I would never consider removing the instrument cluster.. And for the record my hands are not small or don't resemble "wee tiny girl hands" in any way. (Ok, maybe just the pretty pink nail polish JUST KIDDING..LOL Moving on.. Security wise you would think making connections behind the radio would be better, but as you can see everyone seems to recommend making them their anyway, not really fooling anyone on that particular car. If it makes you sleep better at night, make 'em behind the radio. Good luck, Mike