This works...
# Google Map Options
Config::Set('MAP_WIDTH', '875px');
Config::Set('MAP_HEIGHT', '650px');
# Valid types are G_NORMAL_MAP, G_SATELLITE_MAP, G_HYBRID_MAP, G_PHYSICAL_MAP
Config::Set('MAP_TYPE', 'G_SATELLITE_MAP');
Config::Set('MAP_LINE_COLOR', '#ff0000');
Config::Set('MAP_CENTER_LAT', '52.308053');
Config::Set('MAP_CENTER_LNG', '4.764167');
Config::Set('MAP_ZOOM_LEVEL', 10);