How do I get the textures to work on thir toon shader?

I followed this tune shader tutorial but for some reason my textures aren't working at all? Everything else works fine but I have nod idea what is causing my textures not to appear. Im getting no compile errors or anything like that just no textures... Heres the Code:

 Shader "Toon Test" {
    Properties {
     _Color ("Diffuse Material Color", Color) = (1,1,1,1)
     _UnlitColor ("Unlit Color", Color) = (0.5,0.5,0.5,1)
     _DiffuseThreshold ("Lighting Threshold", Range(-1.1,1)) = 0.1
     _SpecColor ("Specular Material Color", Color) = (1,1,1,1)
     _Shininess ("Shininess", Range(0.5,1)) = 1 
     _OutlineThickness ("Outline Thickness", Range(0,1)) = 0.1
     _MainTex ("Main Texture", 2D) = "AK47" {}
            
         }
    
      SubShader {
      Pass {
         Tags{ "LightMode" = "ForwardBase" }
        
      
         CGPROGRAM
        
         #pragma vertex vert
         
         #pragma fragment frag
        
        
         
         uniform float4 _Color;
         uniform float4 _UnlitColor;
         uniform float _DiffuseThreshold;
         uniform float4 _SpecColor;
         uniform float _Shininess;
         uniform float _OutlineThickness;
      
        
        
         uniform float4 _LightColor0;
         uniform sampler2D _MainTex;
         uniform float4 _MainTex_ST;            
        
         struct vertexInput {
                
        
         float4 vertex : POSITION;
         float3 normal : NORMAL;
         float4 texcoord : TEXCOORD0;
                  
         };
        
         struct vertexOutput {
                
                 float4 pos : SV_POSITION;
                 float3 normalDir : TEXCOORD1;
                 float4 lightDir : TEXCOORD2;
                 float3 viewDir : TEXCOORD3;
                 float2 uv : TEXCOORD0;
         };
        
         vertexOutput vert(vertexInput input)
         {
                 vertexOutput output;
                
                 
                 output.normalDir = normalize ( mul( float4( input.normal, 0.0 ), _World2Object).xyz );
                
               
                 float4 posWorld = mul(_Object2World, input.vertex);
                
                 
                 output.viewDir = normalize( _WorldSpaceCameraPos.xyz - posWorld.xyz ); 
                
                 float3 fragmentToLightSource = ( _WorldSpaceCameraPos.xyz - posWorld.xyz);
                 output.lightDir = float4(
                         normalize( lerp(_WorldSpaceLightPos0.xyz , fragmentToLightSource, _WorldSpaceLightPos0.w) ),
                         lerp(1.0 , 1.0/length(fragmentToLightSource), _WorldSpaceLightPos0.w)
                 );
                
                 
                 output.pos = mul( UNITY_MATRIX_MVP, input.vertex );  
                
                 
                 output.uv =input.texcoord;
                
                 return output;
          
         }
        
         float4 frag(vertexOutput input) : COLOR
         {
  
         float nDotL = saturate(dot(input.normalDir, input.lightDir.xyz));
                        
     
         float diffuseCutoff = saturate( ( max(_DiffuseThreshold, nDotL) - _DiffuseThreshold ) *1000 );
                        
        
         float specularCutoff = saturate( max(_Shininess, dot(reflect(-input.lightDir.xyz, input.normalDir), input.viewDir))-_Shininess ) * 1000;
                        
        
         float outlineStrength = saturate( (dot(input.normalDir, input.viewDir ) - _OutlineThickness) * 1000 );
                
                        
         float3 ambientLight = (1-diffuseCutoff) * _UnlitColor.xyz; 
         float3 diffuseReflection = (1-specularCutoff) * _Color.xyz * diffuseCutoff;
         float3 specularReflection = _SpecColor.xyz * specularCutoff;
                
         float3 combinedLight = (ambientLight + diffuseReflection) * outlineStrength + specularReflection;
                        
         return float4(combinedLight, 1.0); 
  
         }
        
         ENDCG
      
       }
  
    
    }
  
 }