2004 Toyota Avalon

Replaced the alternator which was bad and draining the battery.  Now the
car lights flicker and the thing died again.  The front bumber was replace
after a fender bender.  The replacement fender for that year had two
configruations and the fog lights would not fit the fender I replaced so the
body man did not replace the lights, left the connections dangling. Ever
since, the car has had flickering lights and draining the battery.