Engine noise driving me nuts!!

[Jims5543]

I got a Stiletto 2 from best buy last week.

Before that I had my Sirius sportster (exactly like the one Jay is rockin)

I finally fixed the radio in my RX7 so I decided to put the Sirius in it. The radio makes no noise at all, its nice and quiet in FM or CD mode. The radio I bought allows for an I-pod hookup so I plugged my Sirius directly into the I-pod hookup. When I do this I get a LOT of engine noise, so much it will give you a headache and overpowers whatever is on the radio.

So I went ot Radio Shack and bought a $30 noise eliminator and installed it on its own circuit just for the Sirius. Same noise.

If I unplug my Stiletto 2 and let it run on battery, no noise, so obviously it is picking up a lot of noise when running on the cars 12V.

The radio shack isolator has proved useless.

I have my battery in the back of the car I am toying with running a direct line from the battery and see if that does it.


Any suggestions?

[lm6y]

I'm guessing that it is the whining that sounds like a siren type noise.

99% of noise in a car stereo is caused by a ground loop. It sounds like the Stilletto is getting a different ground than your radio. That's called a ground loop. It will pick up whatever ground has the least amount of resistance back to the battery.

Try moving the ground for the stilletto around. If it runs off the cigarette lighter plug, try grounding the radio to that. If you have it hard wired, try attaching the ground to the radio chassis.