May require a trim board on each side to makeup the difference. Or install a custom made narrow cookie sheet unit cabinet in corner. The drain/hot wtr supply usually go through the rear sides of the other cabinets... DW is one of the last units to install.
Gary
PS don't forget to remove the base floor trim before cabinets.
1. There is no easy way to hook up the outlet water to the houses plumbing system. It is on the opposite side of the kitchen as the sink.
2. There is a black and white wire that is the power. I have a 120 volt outlet right where I want to put it. How do I connect the two wires to a 120 volt cord?
Normally the dish washer sits next to the sink cabinet and the supply water and waste water connect to the sinks. Just from the standpoint of loading it you want it next to the sink as well.
You may also need to ground the dishwasher/plug... I ran my DW across from the sink (6' away) with the standard drain hose under the floor, in the crawlspace to hook it at the garbage disposal outlet built for that purpose, then a loop or vent at sink, check local AHJ for that. The water shut off to the unit is under the sink as well. Read the unit plumbing/wiring installation instructions... Google wiring a DW...