Hi i am new here and just looking for some help. I have an 07 yukon denali with bose. The vehicle did not have a factory navigation, so i put a factory unit out of another 07 denali part number ending in 102. Installed it and removed the theft lock. There is no sound output from the unit. WHen i try to programm it with tis and sps i get an error everytime. I know this subject has many threads but i cant find anything on why i would get errors. Any help would be appreciated.