trying to upgrade my cars level of opions to include level 3 cluster, so want to know befor i go unsoldering anything, does anyone know what chip the odometer reading is held on ? i need to carry over my cars original ks, the unit was made by VDO, has 3 sepperate digital read outs including trip computor, any one from australia would know this vehicle well, very common here. any tips on how to find the chip greatly appretiated. Mark