Installing An Oem Navigation Dvd 2008 Gmc Sierra

[cokepka]

Hello, I have a 2008 Gmc Sierra HD, duramax, bose with factory cd. I just bought a factory DVD, NAVIGATION on ebay with c#25846421, map dvd version 3.0 c# 25850927 and GPS antenna. Can someone please tell me what do I do next?? Do I need any other wiring to hook it up or just plug the wires that my truck already has. The reason I am asking about extra wiring cause my nav unit has to extra slots in it (what r they for??) Can some one please let me know if this unit will fit my truck??? Do I have everything that I need?? I did intalled it in my truck onece and it says on the display ( THEFTLOCK). Can someone please let me know what I need to do to get this thing working.

THANK YOU SO MUCH.

SERGE

[stss95]

Hello, I have a 2008 Gmc Sierra HD, duramax, bose with factory cd. I just bought a factory DVD, NAVIGATION on ebay with c#25846421, map dvd version 3.0 c# 25850927 and GPS antenna. Can someone please tell me what do I do next?? Do I need any other wiring to hook it up or just plug the wires that my truck already has. The reason I am asking about extra wiring cause my nav unit has to extra slots in it (what r they for??) Can some one please let me know if this unit will fit my truck??? Do I have everything that I need?? I did intalled it in my truck onece and it says on the display ( THEFTLOCK). Can someone please let me know what I need to do to get this thing working.

THANK YOU SO MUCH.

SERGE

 

 

from what ive read you have to take your truck to the dealer and have them program it in with a tech II