I picked up a Monster A IP FM-CH 250 iCarPlay Wireless 250 FM Transmitter for iPod® & iPhone from the local electronics store
I was hoping I could plug just the USB cable part of the 12v-auto-USB charger into a nearby computer and transmit the iPod songs within 30 feet of the Nutone Intercom IM 4006 into the FM radio.
But, for some reason, the Monster wireless FM transmitter doesn't get received on the Nutone IM.4006 so I'll likely return it as a failure.
I'm not sure why this didn't work but maybe I was too far from the antenna???
Where is the Nutone antenna anyway?