Anyone spending a dime on an unknown product or source needs to do some checking prior to buying anything from anywhere on line. That's just a fact these days. You skip that step, and you deserve no sympathy!

Bub8, you already know you skipped an important step in checking out your plane prior to flying it. From the tone of your note though, I'm wondering if you know why that's done? It's not just the potential for some function of the radio to be bad, it's the installation! There's so much going on in these things anymore they can be quite complicated, and as good as even the best radio available has become, there's the potential for RF generated 'gremlins' to exist! Do spend some time checking the plane out, especially with the engine running prior to flying it. Doesn't cost a dime to be cautious.... and I'm sure you don't need reminding what it can cost if you aren't?