1993 LS400 I'm having a problem with intermittant individual tail lights on my 93 LS400. Replaced bulbs and even bought a new harness and socket assembly from Iron Toad Lexus. Grounds are good - this is an individual bulb problem. When I wiggle the bulb slightly it goes on and off. Problem seems to be the contact spring tension in the socket. Has anyone else run into this problem ?? As I said I already replaced the harness/socket assembly THANKS for thoughts - Herm