hi there i got a golf 00 vr6 4motion and i was having problem with rear drive so i got a appoinment at the dealership and they told me that the haldex ecu was fried an i needit a new one. only problem is that the ecu cost an arm and a leg in the dealership, so i want to know where the ecu is locadet and if i can use ecu from any mk4 4motion from a scrapyard ???