Bad earth seat Ibiza Cupar 2016

[Doliver16]

Hi, I have a bad earth on my seat and I’m unsure on the location, my obd reader tells me it’s coming from gps antenna the defrost flap and a illumination light, I will post the codes with proper discription shortly also my start stop has stopped as well saying power consumption is too high with I would guess is to do with the bad earth. I put a new battery and starter motor on but I think this earth is killing the battery again

 

[Doliver16]