I've been curious about the knob on the Icom IC706Mkll-G, it looks about the same size as the K2 knob but I've only seen pictures of it. Anyone looked real close at one? Wonder if it would fit? I looked on the Icom site for a parts manual but couldn't find one, only found an Instructional Manual. What catches my eye is the fact that it has both a rubber ring and a turning dimple. Thanks, Roy Vickers (KF5YU)