Playing multiple sounds in swift

I am trying to add multiple buttons to play a dedicated sound ie;button 1 plays sound 1, button 2 plays sound 2, button 3 plays sound 3, and so on. I've tried using the below code:

import UIKit
import AVFoundation

class ViewController: UIViewController {

var PlaySound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("tea-pot-whistle", ofType: "wav")!)
var Sound1audioPlayer = AVAudioPlayer()
var pianoSound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("wind_1234", ofType: "wav")!)
var Sound2audioPlayer = AVAudioPlayer()
var pianoSound2 = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("Evil_Laugh", ofType: "wav")!)
var Sound3audioPlayer = AVAudioPlayer()

@IBOutlet weak var Btn1 : UIButton!
@IBOutlet weak var Btn2 : UIButton!
@IBOutlet weak var Btn3 : UIButton!

@IBAction func likedThis(sender: UIButton) {

    if (Btn1.tag == 1){
        Sound1audioPlayer.play()
    }
    if(Btn2.tag == 2){
        Sound2audioPlayer.play()
    }
    if (Btn3.tag == 3){
        Sound3audioPlayer.play()
    }



   /*
    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"givewater", CFSTR ("wav"), NULL);
    UInt32 SoundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &SoundID);
    AudioServicesPlaySystemSound(SoundID);*/

}


override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    Btn1.tag = 1;
    Btn2.tag = 2;
    Btn3.tag = 3;

    Sound1audioPlayer = try! AVAudioPlayer(contentsOfURL: pianoSound)
    Sound2audioPlayer = try! AVAudioPlayer(contentsOfURL: PlaySound)
    Sound3audioPlayer = try! AVAudioPlayer(contentsOfURL: pianoSound2)

    Sound1audioPlayer.prepareToPlay()
    Sound2audioPlayer.prepareToPlay()
    Sound3audioPlayer.prepareToPlay()

}

override func didReceiveMemoryWaing() {
    super.didReceiveMemoryWaing()
    // Dispose of any resources that can be recreated.
}


}

this code plays the sound but it plays all three depending on which button is pressed. I am new to swift, in objective c I had each IBAction written out for each button. Then I modified the code to tie all the buttons to a single action and I used tags to determine which button was pressed. Am i able to this type of consolidation with swift? any help would greatly appreciated.