The cable runs thru a steel conduit tube until it reaches the rear of the car. It then transfers to a length of flexible tube to reach up to the engine. Usually the cable gets stuck at that transition. I found it is easier to separate the flex from the conduit (pulls off), feed the cable out of the conduit and then slip the flex over the cable.
On the upright engine fan housing, the flex connects to a short length of steel tube again to go thru the fan housing.
If you have to bolt the cable end, use Loctite or something so it doesn't come apart...
Speedy Jim