If you are getting older and need more night illumination start with replacing the stock headlights with E codes, made by IPF, Hella, CIBIE and use Xenon bulbs, here is a link to see hours and power and such, lot of information on that site, they are in Reading PA.
http://www.rallylights.com/hella/H4.asp
Keep in mind the brighter the light generally the shorter the life.
Next step is add a good quality set of FOG lights, this will give you better close in illumination and light up the sides of the road better.
Step after that is to put an aux harness in, stick a meter on your headlight socket and measure the voltage, compare it to the voltage at the battery, if it's like 11V at the socket thats from the distance the electricity has to travel from the PDC to the headlight socket, the aux harness eliminates that 8 or 10 ft it has to travel and gives you the same voltage.
Also check your stock headlight sockets, if they are all corroded and green nasty colored find a burnishing tool, thats a piece of spring steel like a nail file, clean the sockets out. If you can find the right sized nail file that will work too just try not to remove too much material from the connectors, also hobby shops have very small super fine files. Then before plugging them back in put a coat of dielectric grease on them to minimize corrosion, also called 'tune up grease'.
You will need to adjust those E codes, they have a very straight cut off line on low beam, I use a wall, chalk line and a yard stick method, works for me.
