9XR Haptic and audio mod

[prizreni]

Hi everybody

Is there a speaker mod too. Could i replace the buzzer with a cellphone speaker or does it draw to much current. If not a cellphone speaker but a piezo buzzer instead, do I have to add other components or just replace the stock buzzer with the piezo one. I have seen a mod for 9X

http://openrcforums.com/wiki/index.php/ ... c_Feedback

but i don't know if i can apply this to 9XR, it must be different i think.
And would somebody please tell me which one of these buzzers is best:

http://www.logingel.com/1310/BrowseProducts


Thank you and best regards
Prizreni