Hi I have changed my manual seats with power seats with heating. The wiring seemed to be ok, but I find that there were no current present in the cables. After checking the fuses at the passengers side fusebox, I found that there was no fuses or relee installed. are the cables connected to the rail in the fusebox? Is it easy to fit the holder for fuses and relees? Any shcematic of the wiring, and connection available? I have the switch panel and also the fuses. My car is a ML w163 2003.