I noticed on my 2-1987 LT230EH's, there is an optional power source plug assembly.  It is mounted to, or clips onto the the rear of the battery box.  On several websites this wired plug is listed as an "accessory" plug.    One of my 230's has a white plastic cover that slips over the plug to protect it.  Question is...what accessory or accessories could this plug power?  What was it's intended purpose?  I'm referencing item 16 in this link's diagram below.  Was it meant as a way to jumpstart another 230?  I Dunno!  Do you?   

http://www.cheapcycleparts.com/oemparts/a/suz/50d0842ff870022710159c37/wiring-harness