RE: cables
Yes you can. The data cables are 6 conductor phone cables with RJ-12 connectors. Notice the connectors at each end are inverted relative to each other. You can hurt your ECU if you don't get this right. In my area, at least, you can find the cable, connectors and crimpers for reasonable prices at Lowes or Home Depot. The power leads are roughly the metric equivalent of 18 ga wire. You might want to go to 16 ga for longer leads.