Hi all...I'm new to the group. Just bought an 88 Jimmy with 4 headlight system. When lows are on, top 2 beams are lit. When hi's are on, top 2 beams get bright....when in the blue hell do the bottom two come on? Truck also has plow lights, so lighting circuit may be modified. Please tell me I don't have to tape two flashlights on the inside of my core support!! "There are 3 kinds of people in this world...Those who can count, and those who can't"