If you pack the connectors with dielectic grease from any auto parts store they will last a while and you will save yourself some agony. Put a little on all the bulb bases and connectors, and you should be okay. Even if you buy the LED's you should pack a little dielectric grease in the connector fitting, unless you bypass this and hardwire it with no quick disconnect.
There is a fine line between hobby and mental illness.
97 D90 SW