Ground can be put on the isofix bar just undo it its what holds your rear seats in mate, then into the amp, speaker wires into the subs, Power and Remote leads down the passenger side of the car run it under the door sills power through the engine cable bit theres a grommit under the dash and then the Remote you can put it through the side of the dash, the RCA's down the right side of the car and again through the dash into the head unit, its a bit hard to explain the remote RCA and power cables mate sorry, hope this helps.