MapView inside a custom cell delegate call

Question

I created a table view with a cell that has a mapView. I add annotation and try to make a route between them. I did the same with the same code from another view controller, which works fine, but couldn't do the same in the user tableview cell that has a map. It does not go inside viewForAnnotationor rendererForOverlay. I have included mapDelegate in the view controller. So please, where is my problem?

let cell = tableView.dequeueReusableCellWithIdentifier("cell8") as! MapViewTableViewCell
cell.mapView.delegate = self //Tested didn't work
    cell.mapView.setRegion(cell.mapView.regionThatFits(MKCoordinateRegionMakeWithDistance(sourceLocation.placemark.coordinate, 1800, 1800)), animated: true)

    cell.calculateRoute(cell.endLocations, secondArray: cell.waypointLocations)

        for item in cell.endLocations {

           let annotation = MKPointAnnotation()
        annotation.coordinate = item.placemark.coordinate
            if cell.endLocations.indexOf(item) == 0 {
                annotation.title = "start"
            }
            else {
                annotation.title = "end"
            }
            cell.mapView.addAnnotation(annotation)
        }

        return cell

And I did and an extension for the card

extension CarViewController : MKMapViewDelegate{

func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {

    if (annotation.title! == "start") {

        let pinAnnotation = MKPinAnnotationView(annotation: annotation, reuseIdentifier: "identifier")
        pinAnnotation.pinColor = .Green
        return pinAnnotation
    }
    else if (annotation.title! == "end") {

        let pinAnnotation = MKPinAnnotationView(annotation: annotation, reuseIdentifier: "identifier")
        pinAnnotation.pinColor = .Purple
        return pinAnnotation
    }
    return nil
}

func mapView(mapView: MKMapView, rendererForOverlay overlay: MKOverlay) -> MKOverlayRenderer {

    if overlay is MKPolyline {
        let polylineRenderer = MKPolylineRenderer(overlay: overlay)
        polylineRenderer.strokeColor = UIColor.greenColor()
        polylineRenderer.alpha = 0.80
        polylineRenderer.lineWidth = 5
        return polylineRenderer
    }

        return MKPolylineRenderer()
    }
}