Hi guys...help please,as I have posted before,I’ve had problems with my car for a while.Today we changed the battery again,and YES...YES...YES,the spoiler went down,all lights were out,took it for a wee run,and everything was fine.Washed the car,and moved it to park up and the spoiler and all lights were on again😡😡,we then disconnected the battery,and vupti spoiler went down,all lights out again,disconnected the earth so my mechanic now thinks it’s to do with earth connections.Any similar problems and suggestions as what to do please😢😢