ledgerbird95

So I just picked up my very first Subaru. Its a 2002 Forester L. Of course the jerk who sold it to me forgot to mention that the headlights don't work. I replaced the bulbs with new ones, and still nothing. If I "fiddle" with the drivers side bulb connector I can get both of the headlights to come on, but they are very dim. Oh, and the passenger brights come on... WTF?!? I checked the ground cleaned it off and it didn't change anything, also I squirted some dielectric grease one the headlight connectors because they're a bit corroded, drivers side is actually burnt a little bit too. I'm assuming the problem is bad three prong female connectors, but i'm confused on why both headlights turn on very dimly when I fiddle with the drivers side connector. Any tips/advice would be much appreciated! Thanks in advance.