Easiest way to sort this is make two new cables. One from battery negative down to the bulkhead earth point and then another from the bulkhead onto the starter bolt. The spade connectors on the original cable are not used from the factory so no need to replicate the original cable.
Hi all, found out the issue. Part of the harness has been chewed/eaten by ratsView attachment 188122
Ouch
Looks a pain to repair some sections will really need lengths of new wire as they look corroded also wants the plastic clip type device on the lone wire
Looks like one of those terrible scotchlock devices
Do you know what that black box is used for? Thanks
Relay likely after market addition
Any after market additions to the car such as extra lights stereo amplifier ect