Bypass it and use direct connect leads. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif Desolder the plug terminal and solder on 4AWG/etc.
As said above, I had a 250 back in the day and I got mine from robot.. I think they even send a sticker with it //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif