I do have 04 seats but where I think im running into problems is they are 04 seats and I put 01 underneath seat harness on them. The heaters plugged in the same, but I had to change the switch. The reason I did that is b/c I had the heated seat modules and harness for 01 seats but not 04 up. Looks like not to many other people are as dumb as me to even try this let alone change the harness. I know somebody else has had to of did this before? I will try autozone site when I get a chance.