Twosided shader with transparent texture

Hey, i found that there is no shader in Unity that allows to see faces from from and back. All shaders have culling turned on. Making my own shader with culling turned off isn't hard, but problems start when i want my texture to use transparency. Culling just doesn't work with it, or there is some other way? Here is "changed" code of Alpha-Diffuse.shader that doesn't work to me:

 Shader "Transparent/Diffuse" {
 Properties {
     _Color ("Main Color", Color) = (1,1,1,1)
     _MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}
 }
 
 SubShader {
     Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}
     LOD 200
     
     Pass {
         Cull Off
     }
 
 CGPROGRAM
 #pragma surface surf Lambert alpha
 
 sampler2D _MainTex;
 fixed4 _Color;
 
 struct Input {
     float2 uv_MainTex;
 };
 
 void surf (Input IN, inout SurfaceOutput o) {
     fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
     o.Albedo = c.rgb;
     o.Alpha = c.a;
 }
 ENDCG
 }
 
 Fallback "Transparent/VertexLit"
 }