I have performed this mod. So far, no issues. YMMV
120 volt (coil) Idec relay SPDT
Parallel coil with blower and neutral.
Place normally open contact in series with (yellow) auger.
When fan stops, auger stops preventing final feed.
For those of you looking for higher temps, faster cooks, more smoke flavor, no burn back, and 100% internet connectivity, this antenna is for you.
Works well (possibly better) plug and play.
Antenna