GLSurfaceView not appearing over MapView

My goal is to use OpenGL ES 2.0 with Google Maps. I would like to create an app that follows the user as they are traveling from point A to point B. I realize that this can be done using Google Maps addPolyline to draw a line, but I want to use OpenGL instead in order to show overlap of paths. I'm currently receiving an error which is due to incorrectly setting up the GLSurfaceView.

My code in the GoogleMapsTracker class is as follows:

private MapView mapView;
private GoogleMap map;
private GLSurfaceView mGLSurfaceView;

/**
 * Use this factory method to create a new instance of
 * this fragment using the provided parameters.
 */
public static GoogleMapsTracker newInstance() {
    GoogleMapsTracker fragment = new GoogleMapsTracker();
    fragment.setRetainInstance(true);
    return fragment;
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    mapView = (MapView) getActivity().findViewById(R.id.map);
    mGLSurfaceView = new GLSurfaceView(getActivity());

    // Check if the system supports OpenGL ES 2.0
    final ActivityManager am = (ActivityManager) getActivity().getSystemService(Context.ACTIVITY_SERVICE);
    final ConfigurationInfo cInfo = am.getDeviceConfigurationInfo();
    final boolean supportsEs2 = cInfo.reqGlEsVersion >= 0x20000;

    if(supportsEs2){
        // Request an OpenGL ES 2.0 compatible context
        mGLSurfaceView.setEGLContextClientVersion(2);

        // Set the renderer to out demo renderer, defined below
        mGLSurfaceView.setRenderer(new GoogleMapsRenderer(getActivity()));
    } else {
        // This is where you could create an OpenGL ES1.x compatible
        // renderer if you wanted to support both ES 1 and ES 2
        Log.d("Does Not Support ES 2.0", "Does NOT Support ES 2.0");
    }
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View v;

    if(SettingsActivity.mUnits){
        v = inflater.inflate(R.layout.google_maps_tracker_metric, container, false);
    } else {
        v = inflater.inflate(R.layout.google_maps_tracker, container, false);
    }

    // Gets the MapView from the XML layout and creates it
    mapView = (MapView) v.findViewById(R.id.map);
    mapView.onCreate(savedInstanceState);

    // Gets to GoogleMap from the MapView and does initialization stuff
    map = mapView.getMap();

    map.getUiSettings().setMyLocationButtonEnabled(true);
    map.getUiSettings().setZoomControlsEnabled(true);
    map.getUiSettings().setRotateGesturesEnabled(true);

    map.setMyLocationEnabled(true);

    map.setMapType(GoogleMap.MAP_TYPE_SATELLITE);

    // Needs to call MapsInitializer before doing any CameraUpdateFactory calls
    MapsInitializer.initialize(this.getActivity());

    // Updates the location and zoom of the MapView
    CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(new LatLng(45.669656, -111.067373), 18);
    map.animateCamera(cameraUpdate);

    mGLSurfaceView = (GLSurfaceView) v.findViewById(R.id.gl);
    mGLSurfaceView.setEGLContextClientVersion(2);
    GoogleMapsRenderer renderer = new GoogleMapsRenderer(getActivity());
    mGLSurfaceView.setEGLConfigChooser(8, 8, 8, 8, 16, 0);
    mGLSurfaceView.setRenderer(renderer);
    mGLSurfaceView.getHolder().setFormat(PixelFormat.TRANSLUCENT);
    mGLSurfaceView.setRenderMode(GLSurfaceView.RENDERMODE_CONTINUOUSLY);

    mGLSurfaceView.setZOrderOnTop(true);

    return v;
}

My XML code:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://ift.tt/nIICcg"
xmlns:tools="http://ift.tt/LrGmb4"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >

<!--fragment
    android:name="com.google.android.gms.maps.MapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/map"
    tools:context=".MainActivity" /-->

<com.google.android.gms.maps.MapView android:id="@+id/map"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"/>

<android.opengl.GLSurfaceView
    android:id="@+id/gl"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    class="com.example.tracker.GoogleMapsRenderer"/>

</RelativeLayout>

The error I'm receiving is as follows:

    05-22 11:02:34.854  22996-22996/com.example.tracker E/AndroidRuntime﹕ FATAL     EXCEPTION: main
    Process: com.example.tracker, PID: 22996
    java.lang.NullPointerException: Attempt to invoke virtual method 'void android.opengl.GLSurfaceView$GLThread.surfaceCreated()' on a null object reference
            at android.opengl.GLSurfaceView.surfaceCreated(GLSurfaceView.java:523)
            at android.view.SurfaceView.updateWindow(SurfaceView.java:580)
            at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:176)
            at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:944)
            at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1970)
            at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1061)
            at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5885)
            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
            at android.view.Choreographer.doCallbacks(Choreographer.java:580)
            at android.view.Choreographer.doFrame(Choreographer.java:550)
            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5254)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)

I'm quite certain that I'm not adding my views together properly. If anyone can point out my mistakes and a better way of implementing this idea that would be much appreciated.