Hi All,I have recently had fitted both oil pressure and e.g.t gauges to my 97 Tdi. They are universal gauges (syl1813G)purchased from Auber Instruments in USA.They also sell a mounting pod(SBOX.They look quite attractive sitting on dash.Auber state this gauge can also be used to monitor voltage, just wondering if anybody has used them in this application.The gauges appear to be performing welland are relatively inexpensive$73.00 USD for gauge and mounting pod.Regards lucky lozza