Help a tired man with #C..... (Record Player in Horror Game)

So i have easy questions, but i am bad coding and have been working for hours without solving anything:(, this is a #C code. I have this script for an old Record Player in my horror game what it does is that it moves some parts ot it. (its an animation of the Record Player's arm and the disc rolling) That's not the problem, the script as it is works perfectly and plays the animation. I can choose from unity if i want the animation to play or not just by clicking on the box "Record Player Active" I simply want to add two things to this script. That this "animation" gets activated when the player is in the trigger of the object and presses "E" and stops playing when pressing "E" again (always beeing in the trigger) And the secod thing, that it plays music, i have the track but i dont know how to make it work:( If someone could send me the code with the solution it will help me a lot, i have been too long trying and always getting errors, im bad at #C This is the code: using UnityEngine; using System.Collections;

 public class RecordPlayer : MonoBehaviour {
 //--------------------------------------------------------------------------------------------
 //--------------------------------------------------------------------------------------------
 //--------------------------------------------------------------------------------------------
 
     public bool recordPlayerActive = false;
 
     GameObject disc;
     GameObject arm;
 
     int mode;
     float armAngle;
     float discAngle;
     float discSpeed;
 
 //--------------------------------------------------------------------------------------------
 //--------------------------------------------------------------------------------------------
 //--------------------------------------------------------------------------------------------
 void Awake()
 {
     disc = gameObject.transform.Find("teller").gameObject;
     arm = gameObject.transform.Find("arm").gameObject;
 }
 //--------------------------------------------------------------------------------------------
 //--------------------------------------------------------------------------------------------
 //--------------------------------------------------------------------------------------------
 void Start()
 {
     mode = 0;
     armAngle = 0.0f;
     discAngle = 0.0f;
     discSpeed = 0.0f;
 }
 //--------------------------------------------------------------------------------------------
 //--------------------------------------------------------------------------------------------
 //--------------------------------------------------------------------------------------------
 void Update()
 {
     //-- Mode 0: player off
     if(mode == 0)
     {   
         if(recordPlayerActive == true)
             mode = 1;
     }
     //-- Mode 1: activation
     else if(mode == 1)
     {
         if(recordPlayerActive == true)
         {
             armAngle += Time.deltaTime * 30.0f;
             if(armAngle >= 30.0f)
             {
                 armAngle = 30.0f;
                 mode = 2;
             }
             discAngle += Time.deltaTime * discSpeed;
             discSpeed += Time.deltaTime * 80.0f;
         }
         else
             mode = 3;
     }
     //-- Mode 2: running
     else if(mode == 2)
     {
         if(recordPlayerActive == true)
             discAngle += Time.deltaTime * discSpeed;
         else
             mode = 3;
     }
     //-- Mode 3: stopping
     else
     {
         if(recordPlayerActive == false)
         {
             armAngle -= Time.deltaTime * 30.0f;
             if(armAngle <= 0.0f)
                 armAngle = 0.0f;
 
             discAngle += Time.deltaTime * discSpeed;
             discSpeed -= Time.deltaTime * 80.0f;
             if(discSpeed <= 0.0f)
                 discSpeed = 0.0f;
 
             if((discSpeed == 0.0f) && (armAngle == 0.0f))
                 mode = 0;
         }
         else
             mode = 1;
     }
 
     //-- update objects
     arm.transform.localEulerAngles = new Vector3(0.0f, armAngle, 0.0f);
     disc.transform.localEulerAngles = new Vector3(0.0f, discAngle, 0.0f);
 }
 //--------------------------------------------------------------------------------------------
 //--------------------------------------------------------------------------------------------
 //--------------------------------------------------------------------------------------------
 }