Unity MB slide-out motor cable routing

[galyon]

2013 Unity UMB. I have a problem where the front side of the slide out will intermittently begin to slide out and then stop. I've replaced the controller and have come to the conclusion there may be a short in the cable from the controller (under the kitchen cabinet) to the front motor. Before I attempt to replace it I'd like to hear from anyone who has dealt with replacing the cable, how the cables are routed, and is this something I should be able to do or leave it to the pros. Thanks in advance.