Hi

I intend to hardwire a power accessory socket for devices like Sat nav, mobile phones etc. I am going to a run a 17 amp rated power cable from the battery positive connector with an inline fuse at the battery end.

My question is; Is there a suitable earth connector that I connect the negative cable to rather than connecting to the battery itself.

My car is a 2006 Mondeo Zetec 2.0 petrol UK version.

Thanks

Ian