Are you joking??? Why would you want to Line-X your carpet??? 1st Line-X is expensive and I really doubt that a tech would do that, but if you got the $, they probably would. I always take out the carpet of my Jeeps that I wheel. I don't like it in there and I just deal with the increased noise level. I would suggest getting the Herculiner kit from Kragen, Pep Boys etc for $80 or so and doing it yourself. I have done 3 XJs and 3 YJs in Herculiner and love the stuff. You can always put the carpet back in, but I doubt you will. I just Herculined mine and even left most of the drain plugs out. You can also get the rubber mat that the police XJ used. That should keep the sound level out better and it should work better in the wet stuff than carpet.