[CA] Quantum/e127 WIFI compatible?

I'm getting ready to pull the trigger on a Quantum radar for my 27' Shamrock. I have an e127 unit installed, I thought it was WIFI compatible but was told by a salesman it is not compatible with the Quantum using wifi only. I'll have to get the Quantum that has power and data cables.

I'm okay using wifi only and wouldn't mind saving a few $$$. Just trying to make sure I get the right unit as the salesman couldn't show me hard evidence that it was not compatible.

Thanks,

Rob in Tacoma