I used the EZ wiring on my 42. Liked it and the price was right. On my 56, I used American Autowire Highway Series and really like it. Cost was about a hundred bucks more than the EZ, but it had separated harnesses and connectors and to me was an easier install than the EZ. The separate fuse panel made life much easier, as did not having all the wires to deal with at one time. For the money though, the EZ is hard to beat. I would not hesitate to use either again.