Car is making a clicking noise when I try to start it.
The battery charger says the battery is full.

alternator..... voltage regulator?

wheres the vr at?

 

check your battery cables make sure they are clean and tight... not too tight

also, you may have a starter solenoid going out

the V/R is inside the alternator, but that only regulates how mauch the alternator will charge the battery... if the battery is fully charged... then the V/R is probably fine