hey guys i have an early production 1999 audi a4. i just bought a headlight assembley from ebay and he claimed that it was from a 99 audi a4 as well. im trying to connect the cornor light socket, but the socket connections are different. can i just use some wire and connections to use to connect the cornor light and make it work. i know on the wire harness connections the bottom one is ground, the top right is the blinker and the top left is the city lights. now on the actual light bulb socket holder the socket only has two connect points. how do i know which one is ground and which one is for the city/blinker light? or do i need to buy the new light socket holder? thanks for your help