well with XM do you really need FM??? unplug the antenna after the modulator


"Clumpy Wheel" wrote in message
news
I want to get an XM radio for my truck and I see that all of the
non-specialist stores (Best Buy, Circuit City, etc.) are all pushing these
"works with your existing radio" units, which I understand work via FM
modulation. But how exactly does that work?

I used to have an adapter for my Discman years ago where I had to tune the
radio to an unused frequency to listen to it, but it didn't work very well
because no matter what frequency I turned to, I'd get some interference.
Do
these XM systems work the same way? I live in Los Angeles now and I'm not
sure it would be possible to find an FM frequency with nothing on it.

well with XM do you really need FM??? unplug the antenna after the
modulator

Yes