I'm thinking about installing an a/c on my '03 civic dx (manual, 4dr). There are kits available from online honda dealers, but they only seem to sell the kit for the american version )http://www.handa-accessories.com/civic/03civac.pdf). My honda was sold in Ontario, so the install instructions list a different part number. does annyone know if there really is a difference, or can I make the US kit work on my canadian import? thx