2003 Audi A3 front OS was damaged along with the fuse box

I recently repaired a damaged 2003 Audi A3 TDI quattro s-line (170) 65,000 mileage- all body work is done and we had an electrician replaced fuse box and cabling. The car does have power ie windows, stereo. The remote key will lock and unlock the vehicle and we can get the engine to turn over no problem. But it will not start from the key, the dash isn't lighting up either? Any Audi experts out there know what the problem might be? Thanks in advance for any help.