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Old 12-04-2006, 04:46 PM   #1
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Join Date: Nov 13, 2006
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Default What does it mean to hardwire Sirius to your car?

I recently bought the Sportser 4 from Best Buy and I didn't want to plug it into the cigarette lighter of my car and have wires all over the place (i did that on another car and it was annoying) so I had best buy hardwire the car.

Honestly, I dont know what hardwiriing means...i just know i paid Best Buy to hardwire my sirius to my car and wallah! i dont see any wires and i dont have to plug the sirius into the cigarette lighter. The sirius base is suction cupped to the left of the steering wheel on the windshield and the attena is inside the car near the center of the front window on the dash.

So, my question is: what does it mean to hardwire sirius to your vehicle? what did Best Buy do when they hard wired my Sirius to my car? Did they connect my sirius directly to my radio? or did they connect it directly to my circuit breaker? what did they connect it to? Did they remove my dashboard to do this? Also, did they need to sodder anything together or is it as simple as just putting the wires from my plug and play into something? I didnt ask any questions when I had this done...i just knew hardwiring meant i wouldnt have to stare at i'm just curious what work went into hardwiring the plug n play to my car and could it have altered my car in any way so, for example, my car radio or circuit breaker wouldnt be covered under its warranty (I dont think it did, but just curious if it could have.)...

Also, I was told to improve the strength of the sirius i should buy a FM modulater. So I bought one and Best Buy installed it. The reception is terrific and I havent had any problems whatsoever. But like the sirius itself, what did they hook they FM modulator to? Did they connect it directly to the car radio or to something else? or is it possible that the FM modulator doesnt connect to anything but the sirius? Basically, how is a FM modulator hooked up to a car?

I'm very happy with the reception and its much better than the plug n play in my other car where i have wires all over the place. sorry for this long message, but i thought maybe someone here could help me find some answers. thanks a lot!
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Old 12-04-2006, 10:23 PM   #2
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What does it mean to hardwire Sirius to your car?
Join Date: Jan 11, 2005
Location: California
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Sounds like they hardwired the power of your tuner. This means they spliced into a 12 volt power source behind the dash. Only they could give you more specifics about how they did it since each car is different and there are many ways of doing this in any car.

The FM Modulator Relay is just a relay box that plugs inline between your sirius tuner and your car stereo. It basically turns off your external FM antenna while your Sirius tuner is on. It also provides a wire for the FM signal to get from the tuner to your car stereo FM antenna input instead of using the wireless transmitter. It eliminates interference you would get from powerful FM stations if you were to just use the wireless FM transmitter built into your sirius tuner. You can do a search on this forum to find more deailted info about the relay if you would like.

glad to hear that everything is working well for you! It makes a world of difference when you put in just a little extra effort/money to get a good, reliable installation like you did.
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