2004 Gallardo Coupe E-Gear Giallo Midas
Hi, 2.) that is the power cable of solenoid valve that closes/opens the exhaust valves. Goes right to the ECU behind the seats. Looks like someone modified the wires to insert a steering module so the valve keeps open all the time / is configurable with a remote. Just follow the cables in the direction of the rear light. Is the exhaust really loud? That could be the answer if the wiring is faulty, because the default position of the valves is "open".