I recently received my VL GS5. It is an amazing engine. I do have one minor concern and I am wondering if any other owners are experiencing the same thing. The speaker in the boiler makes a crackling noise when blowing the whistle/horn at the top 3 volume levels. The bizarre thing is I shot a video of the engine but in the audio you can't hear what can plainly be heard in person. Is anyone else hearing distortion/crackling from the from the boiler speaker?