MM2 wiring harness | PlowSite wwwsite››Fisher Engineering DiscussionSep 27, 2009MM2 wiring harness shorting out? This summer I bought a 2003 Silverado with a MM-2 fisher plow. When the plow is hooked up and the harnesses are attached the battery goes dead when the truck sits over night. Coming from the truck one of the female connectors has an 11-socket plug on it.3 plug fisher truck side wiring harness | PlowSiteAug 29, 2018Fisher MM1 Wiring Diagram | PlowSiteNov 25, 2017installing fisher plow/wiring and pushplates? | PlowSiteJan 13, 2010MM2 wiring harness | Page 3 | PlowSiteOct 19, 2009See more results Fisher Plow Harness | eBay Includes the following Western fisher straight v blade snowplow 7 6 8 9 foot winter ford Chevy Chevrolet ram unimount ultramount fish stik wire harness truck plow side.