GM FIRST USED A DATA LINK RADIO IN 2000 IN MOST CHEVY CARS, THE RADIO LINKS WITH THE VEHICLE COMPUTER, IT HAS 2 FUNCTIONS, THE FIRST IS SECURITY, ONCE THE RADIO LINKS WITH THE COMPUTER IT WILL ONLY WORK WITH THAT VEHICLE, IF YOU TRY TO PUT THAT RADIO IN A DIFFERENT VEHICLE IT WILL BE LOCKED, PUT IT BACK IN THE SAME VEHICLE IT WILL WORK. THE OTHER FUNCTION IS TO CLEAR CODES AND CHANGE SETTING THE RADIO IS USED TO CHANGE THE SETTING ON HOW YOUR KEYLESS ENTRY OR ALARM SYSTEM WILL WORK, AND USED TO CLEAR WARRING CODES LIKE LOW OIL.

MOST DATA LINK RADIOS MOUNT THE SAME AND HAVE THE SAME PLUGS, SOME VEHICLES LIKE PONTIAC AND BUICK'S USE A DOCK AND LOCK OR DIFFERENT MOUNTS. THEY ARE NOT ALL INTERCHANGEABLE, YOU HAVE TO HAVE THE PART NUMBER FOR YOUR VEHICLE, MOST WILL CODE DOWN, BUT NOT UP, THIS MEANS THAT A 2002 PART NUMBER, WILL NOT WORK IN A 2003 AND UP, BUT A 2004 PART NUMBER WILL WORK IN A 2000-2004 OF THE SAME MODEL VEHICLE.

ALL DATA LINK RADIOS HAVE TO BE CODED. THE EARLY MODEL VEHICLES, 2000-2002 WOULD CODE THEMSELVES THE RADIO CODED TO THE COMPUTER BY JUST PLUGGING IT IN, IT HAD TO BE UNLOCKED RADIO. SOME 2002 AND ALL 2003 AND UP VEHICLES, HAD TO BE CODED BY THE DEALER USING A TEC 2, EVEN AN UNLOCKED BRAND NEW RADIO WOULD STILL NEED TO BE CODED
A USED DATA LINK RADIO WILL ALWAYS BE LOCKED, IT WILL HAVE TO BE UNLOCKED AND RECODED BY A DEALER, The average cost a dealer charges to unlock and code a radio is $120.00. THE BIGGEST PROBLEM WITH BUYING A USED RADIO IS THAT YOU CAN'T TEST IT TILL ITS BEEN UNLOCKED AND CODED, AND IF THERE A PROBLEM WITH THE RADIO SHIPPING DAMAGE OR DEFECTED FROM THE START. THE DEALER WILL STILL CHARGE YOU FOR CODING, IF YOU HAVE THE WRONG PART NUMBER, YOUR DEALER WON'T KNOW AND WILL STILL CHARGE YOU, THERE DOING THE LABOR YOU REQUESTED AND ITS NOT THERE FAULT IF THE RADIO IS DEFECTED OR THE WRONG PART NUMBER, EVEN IF THE RADIO YOU BOUGHT HAS A WARRANTY, YOU WILL BE CHARGED AGAIN TO CODE THE REPLACEMENT,

NEW AND FACTORY REFURBISHED( ONES THAT COME FROM AN AUTHORIZE DELCO SERVICE CENTER) DATA LINK RADIO, WILL BE UNLOCKED. IN 2000-2002 CHEVY, GMC CARS, AND TRUCKS AND 2000-2004 PONTIAC AND BUICK'S, THESE RADIO WILL CODE THEM SELF ONCE PLUGGED IN AND NO DEALER NEEDED, IT MUST BE AN UNLOCKED RADIO, 2003 AND UP EVEN AN UNLOCKED RADIO WILL STILL NEED TO BE CODED,

WE DEAL WITH THE ONLY DELCO SERVICE CENTER THAT CAN PRE-CODE A DATA LINK RADIO TO LEARN YOUR VIN NUMBER AND CODE IT SELF TO YOUR VEHICLE BCM COMPUTER JUST BY PLUGGING IT IN, THE SAME AS THE 2000-2002 RADIOS WORKED BUT WILL WORK ON ALL YEARS NO DEALER NEEDED. ALL OUR DATA LINKS RADIO OR TESTED, UNLOCKED AND CODED, (PLUG AND PLAY) WE WARRANTY ALL OUR RADIO FOR A YEAR, AND IF THEY DO NEED TO BE REPLACED, THE REPLACEMENT WILL ALSO BE CODED AND PLUG AND PLAY, WE CHECK TO MAKE SURE THE PART NUMBER YOU ORDER WILL WORK IN YOUR VEHICLE. YOU SHOULD NEVER HAVE TO PAY A DEALER TO UNLOCK AND CODE ONE OF OUR RADIO UNLESS YOU DECIDED THAT YOU WANT TO REINSTALL IT IN A DIFFERENT VEHICLE, IF YOU DO WANT TO REINSTALL IT IN A DIFFERENT VEHICLE, YOU CAN SEND IT TO US FOR RECODING, WE CHARGE $65.00 TO RECODE A RADIO PLUS SHIPPING. ALSO WITH THIS PROCESS WE CAN INSTALL SOME MODELS OF RADIOS THAT THE DEALER CAN NOT INSTALL, FOR EXAMPLE GM DOES NOT OFFER A CASS/CD IN THE WT TRUCKS AND CAN NOT CODE THAT RADIO INTO THAT TRUCK, WITH THIS PROCESS THE CASS/CD RADIO WILL PLUG RIGHT INTO THE WT TRUCK AND CODE ITSELF THE SAME AS THE OTHER RADIOS, THE ONLY INFORMATION WE NEED TO PRE-CODE A RADIO IS THE SPEAKER CODE FOUND ON THE Service Parts Identification label that is found in the glove box. THIS CODE MAKE SURE THAT THE RADIO IS CODED FOR THE RIGHT SPEAKER SYSTEM IN YOUR VEHICLE. (WE CAN ONLY CODE AND RECODE RADIOS WE SELL, IF YOU HAVE A RADIO THAT WAS NOT PURCHASED FROM US YOU WILL HAVE TO TAKE IT TO A DEALER, THIS IS THE POLICES OF THE SOURCE THAT WE BUY THE RADIOS FROM THERE THE ONES THAT DO THE CODING)

THE NEW BODY STYLE LAN RADIOS, USED IN THE NEW 2007 AND UP TRUCKS AND CAR WILL ALL HAVE TO BE CODED BY A DEALER, THERE IS NO PROCESS TO PRE-CODE THESE RADIOS,

SOME COMMON PROBLEMS YOU MIGHT HAVE AFTER YOUR RADIO IS INSTALLED (CAL ERR.) ON SOME VEHICLES IT TAKE 7-10 DAYS BEFORE THE RADIO LEARNS THE VIN NUMBER. WHILE ITS LEARNING THE VIN NUMBER, THE RADIO MAY FLASH CAL ERR EVERY TIME YOU TURN IT ON FOR A FEW SECONDS. THIS IS NORMAL AND WILL GO AWAY ONCE THE RADIO LEARNS THE VEHICLE VIN NUMBER.

(IF YOUR LED LIGHT IS NOT WORKING AFTER THE RADIO IS PLUG IN)THIS PROBLEM ONLY HAPPENS ON BRAND NEW NEVER BEEN INSTALLED RADIOS. THE LED LIGHT IS A THEFT FEATURE THAT FLASHES WHEN THE KEY IS TURNED OFF, THE RADIO HAS A COUNTER IN IT AND FOR THE RADIO TO LEARN THE COMPLETE VIN NUMBER THE COUNTER HAS TO BE AT 0. DURING MANUFACTURE THE COUNTER IS SET TO 255 SO THE RADIO CAN BE TESTED WITH OUT HAVING A VIN NUMBER OR BCM COMPUTER CONNECTED TO IT, THE COUNTER IS THEN RESET TO 0 FOR INSTALLATION INTO THE VEHICLE, ON BRAND NEW RADIO DIRECT FROM THE FACTORY NEVER INSTALLED IN A VEHICLE, SOMETIMES THE COUNTER IS NOT RESET ALL THE WAY TO 0. ONCE INSTALLED IN YOUR VEHICLE IF THE COUNTER IS NOT AT 0 THE LED LIGHT WILL NOT WORK TILL THE COUNTER GOES BACK TO 0 ONCE AT 0 THE COUNTER STOPS COUNTING AND THE RADIO IS COMPLETE CODED AND LED LIGHT WILL START WORKING, EVERY TIME THE KEY IS TURNED ON AND LEFT ON FOR AT LEAST 3 SECONDS THE COUNTER COUNTS DOWN 1 DURING NORMAL DRIVING CONDITION THE COUNTER WILL COUNT DOWN TO 0 AFTER ENOUGH IGNITIONS CYCLES, THE AVERAGE TIME IS ABOUT 2 WEEKS DEPENDING ON WHERE THE COUNTER WAS AT AND HOW MUCH YOU USE YOUR VEHICLE,