When ordering hook up wire, start with the base part number. Then use the following abbreviations for the desire color: BK BL BR GR GY OR PK RD SL VI WH YG YL Black Blue Brown Green Green/Yellow Orange Pink Red Slate Violet White Yellow/Green Yellow Finally, use the following put up code for the desired put up: 005 001 013 100FT 1000FT 5000FT For example, if you were ordering 1000ft of part number 3070 in black, the part number would look like 3070 BK001.