andromeda411

hi, getting very frustrated with this. audi connect sim works fine. when i put my sim card into the slot the audi one stops as it is supposed to but then my sim card does nothing. no internet or anything. i have taken out the mib unit and found that there is a black wire that is broken that i think should be connected into the quad connector on the unit can anyone tell me where this black wire goes to or does anyone have a wiring diagram for the quad connector for the unit. many thanks