Originally Posted by
Adam-M
Think it's more to help with voltage losses than to replace corroded wiring which is why people buy the new loom to go straight to the battery and has its own relay and fuse.
Correct, although the old wiring does cause this, due to resistance.
In addition, the voltage drops generally via the fuse box (which is overloaded anyway).
So wiring directly from the battery eliminates this, as well as alleviating the load on the above.
Martin