Nope, for a car manufactured before 1976 when the ADR and VSI regulations kicked in, all it needs is a signature from a VASS which says that it meets the manufacturing standard of the car when it was produced. I've already run it past a VASS who's happy to sign off on it. Basically it's just too old for anyone to care about
like? with proper insulation the cabling is resistant to heat, vibration, EMI, signal decay, moisture etc. Tech from 2000 and late instead of the 60's... naamsayin? You can transmit a lot more data a lot quicker too, which means you could even splice in sensors that have a higher bandwith for more accurate readings.