Voltmeter bounce
I finally found an alternative to buying an OEM cable. Went to the local heavy duty parts store and bought solder on terminals and battery post ends.. They come with solder slugs, you cut the cable to length, put the terminal in a vise, drop in the slug, heat it with a propane torch until it melts. Add a a little flux to the cable end (i use liquid flux designed for electronic soldering) Stick the cable end in and let it cool off. Heat shrink the connection and you're done. Total cost $ 32.95 cdn and a little time.