It's easy. I used aftermarket seat heaters I think I found them online for 39.99 a seat. I put them in the back seat too. I had a friend who does stereo installs do the wiring which was 2 wires per seat warmer. I could have done the wiring but he was down to help. Then I marked where the hog rings were so I knew how to put them back together. I only cut the minimum amount of hog rings possible to get the pads in there. I didn't even remove the seat covers. Just slid them up in there, and then used zip ties instead of hog rings that way I didn't even have to buy any thing. I read how to do it on Subaruforester.org. Some one did the rears I just copied. Lol you should go for it. I ll try n find the info and pm you. I'm 40guzzlr on sf.org I talked to you about your z/s front lip.