Re: Fuse wire
Beware Lucas, the prince of darkness...
With regard to Petur's comment regarding screening; yes, if one were to design something using canbus perhaps (though a twisted balanced drive would remove the need in most cases) but for a rewired old Jag, where you're more likely just to be replicating the existing 12vDC signal with a driver or relay at the far end, you're still looking at very low frequency 12v signals. I'd have *no* worries about using ribbon cable, given adequate cable support at the ends to prevent the cable suffering from vibration issues.