Where to find color codes? 2005 Audi TT

Hey guys, I was wondering where the best place is to find a cars (2005 Audi TT) wiring color codes to install a stereo and remote start? Any and all help would be appreciated.

This is from bulldogsecurity.com TT      2005-2006 AUDI'S TRANSPONDER ANTI-THEFT SYSTEM, See NOTE #1 PART      COLOR      LOCATION      DIAGRAM 12 VOLT CONSTANT      RED (+)      @ IGNITION SWITCH, (8-PIN PLUG), PIN 3       STARTER      RED / BLACK (+)      @ IGNITION SWITCH, (8-PIN PLUG), PIN 5       STARTER 2      RED / BLACK (+)      @ IGNITION SWITCH, (8-PIN PLUG), PIN 1       IGNITION 1      BLACK (+)      @ IGNITION SWITCH, (8-PIN PLUG), PIN 6       IGNITION 2      N/A            IGNITION 3      N/A            ACCESSORY /HEATER BLOWER 1      BLACK/ RED (+)      @ IGNITION SWITCH, (8-PIN PLUG), PIN 2       ACCESSORY /HEATER BLOWER 2      N/A            KEYSENSE      N/A            PARKING LIGHTS ( - )      N/A            PARKING LIGHTS ( + )      GRAY/BROWN(+)(Left) and GRAY/PURPLE(+)(Right) use both and Isolate, NOTE #2      @ HEADLIGHT Switch, (17-PIN PLUG), PIN 13 and 14       POWER LOCK      BLUE/GREEN (TYPE B)      in DRIVERS KICK PANEL or CLCM, (20-PIN PLUG), PIN 14, NOTE #3       POWER UNLOCK      GREEN / WHITE (TYPE B)      in DRIVERS KICK PANEL or CLCM, (20-PIN PLUG), PIN 12, NOTE #3       LOCK MOTOR WIRE      N/A            DOOR TRIGGER      GREEN/ YELLOW to BROWN / YELLOW (-)      in DRIVERS KICK PANEL or CLCM, (16-PIN PLUG), PIN 1, NOTE #3       DOMELIGHT SUPERVISION      BROWN / WHITE (-)      @ CLCM, (12-PIN PLUG), PIN 2, NOTE #3       TRUNK RELEASE      PURPLE / GREEN (5-Wire Type)      @ RELEASE Switch or CLCM, (20-PIN PLUG), PIN 5, NOTE #3       SLIDING POWER DOOR      N/A            HORN      BLACK / YELLOW (+)      @ DRIVERS DASH RELAY PANEL       TACH      Any wire with a PURPLE STRIPE, (AC)      @ Any FUEL-INJECTOR       WAIT TO START LIGHT      N/A            BRAKE      RED / BLACK (+)      @ BRAKE PEDAL Switch, (4-PIN PLUG), PIN 4       FACTORY ALARM DISARM      RED / GRAY to GREEN/ YELLOW (-) (Requires Double Pulse)      in DRIVERS KICK PANEL or CLCM, (12-PIN PLUG), PIN 6, NOTE #3       ANTI-THEFT      AUDI'S TRANSPONDER ANTI-THEFT SYSTEM, See NOTE #1      @ IGNITION SWITCH TUMBLER       NOTES NOTE #1: AUDI'S TRANSPONDER ANTI-THEFT SYSTEM, Requires Bypass Module, NOTE #2: on Vehicles with DRL, it is GRAY / YELLOW (+) at the HEADLIGHT SWITCH, (17-PIN PLUG),PIN 6, you will need to RELAY ISOLATE the switch so that it does not backfeed to the Ignition NOTE #3: the CLCM, (Central Locking Control Module) is located in the LEFT REAR Side Panel.~wirewise~ Verify all wiring with your meter before making any connections!

Thank you WireWise, I appreciate the help!