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Originally Posted by davidmc36
Can't stand listening to music in the car. I don't listen to music a lot regardless of where I am. I will have to throw the deck back in and plug in the Sat Rcvr when we go on vacation this year, wife would refuse to go if it was not there,  but that only takes 15 mins. or so, unplug one set of connectors and plug in another. Dash has four screws. Very slick car to work on actually. |
Just get a power amp or amplified EQ (EBay: less than $40 if you look hard enough) and connect it directly to the Sirius deck by way of a dual-audio taper potentiometer. If you have the chops to hook up a GPS receiver, you can hook up an audio amplifier. This is how I used to run my CD player (and later, MP3 player) before I got a Pioneer stereo with a line-input.
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I read a post somewhere a while back where a guy was talking about using two identical scanners tuned to slightly different freqs to get both channels of the stereo FM.
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That won't work for more than one reason. First off, the audio is only broadcast on one FM carrier. The stereo information is encoded on a subcarrier inside of the audio signal (it's actually AMing the FM in the 23-53 KHz part of the audio signal.) The separate left and right signals are summed to mono on the main carrier and subtracted on the subcarrier. The receiver adds them together to get the left signal and subtracts them (reverses the phase of the difference signal) to get the right channel.
Essentially, audio that appears only in the mono signal goes to both speakes. If a copy of that audio is in the difference channel, then that audio ends up on the left side. If the audio is copied to the difference channel but in reverse phase, it'll end up only in the right speaker. This lets FM broadcasts work on every FM broadcast receiver ever made, not just modern receivers. This technique is also why FM stereo has a little more static than when you switch your radio to mono; the difference channel is being demodulated from (essentially) an AM signal in the audio stream; any noise that affects the original FM stream is going to be amplified by this second demodulation process.
So there is only one FM signal, not two, and you're not going to get stereo by using 2 radios on slightly different frequencies. If someone thinks he did that, he's fooling himself.