So, i have this insignia cluster, up level display. 

and i have a clone tech2,  

tried to add the insignia cluster to my car and i guess predictably it refuses with a hardware mismatch.

i altered the eeprom to have my cars vin number and security code.. i couldnt figure out whdere the mileage is stored in the eeprom dump... so i left that bit alone... this was enough to allow me to do a 'program' session on the BCM which removed the mileage lock out that i'd triggered on the insignisas