So.....after going through recomendations.. Lifted the carpet and found no missing covers so i put a heat mat under the carpet which actually improved on the heat from the belly but realised i was still slowly baking my legs when driving, next i thought of was the cabin heater coil, realised it sends hot coolant through it all times even with the heater is off so disconected the hoses and rerouted/ bypass them back to radiator, problem solved. Question is do these old paj's have a valve that controls flow of coolant into the cabin heater coil? Or is it just free flow.