I went ahead and moved the thread from the chat lounge to here, were you'll get a better responce.
I haven't had any problems with my Switch module.
I guess the first thing I would do is switch back to the Airtronics module to isolate the problem. If it still glitches with the Airtonics module & crystal, then you know the problem isn't the Switch.
If it still glitches with the original module & crystal, you know it's either the radio itself, or something on the car causing it to glitch.
If it doesn't glitch with the original crystal & module, I'd say to go ahead and pop the Switch back in, try the same freqency. If it glitches still, give Novak a call. They have their info at www.teamnovak.com