my car was almost for 3 weeks standing at the airport in freezing temperature and when i came back, it didn't start, so i used another car to deliver power to my battery via starting cables ... when my engine started, i realised that all instuments/gauges and also aircon, heater nad fan is not working ... no speedo, revs, oil press ... nothing ;-/ ... i went through the manual and tried to check all fuses , but nothing found, everything seems to be o.k. ... i can drive the car , the main vital function remains unchanged ... can somebody give me the tip what it can be ??? does somebody have some electrical scheme of the car ?? ... thanks very much for any help !!!