i am looking at plumbing in a recirculating heater into my LX450, yes i know its a bit excessive but who doesn't like getting into a warm car. so im wondering if any one has one plumbed in, i was thinking of connecting it to what was outlet and return to the rear heater (yes it is already deleted). so if any one has done this please share what you have done, im looking at putting something like a zerostart 2204037 as there is alot of space under the hood to fit it.
