yep i used the DW300, went in easily enough. so you reckon i can just pop the relay on and energize it off the old feed then the pump will run full ball all the time when the car is on, this is ok for the car/pump? atm its just running off the stock cables. yep it touches the seat a little it lines up with one of the box sections under the seat tho. if i sit on it i cant feel anything and im a 100 odd kgs or so haha