ignition noise satellite radio integration

[grandmufti]

Problem with engine noise interference: satellite radio.

I have 2 E46 BMWs each with DICE IPOD integration which works just fine. I added Sirius Starmate 5 satellite radio. It feeds through the DICE IPOD integration. Button 5 on the BMW radio toggles between the IPOD and Aux 1, the satellite radio. One vehicle has no issues with interference of any kind. The power is hard wired in. I am not using the cigarette lighter for power. The other has engine noise interference that changes frequency with engine rpms. The noise exists even when the satellite radio is turned off provided button 5 selects Aux 1, the satellite radio. I added the below noise filter which makes no difference whatsoever. Any suggestions.

PIE 5 AMP In-Line Power Lead Noise Filter

PART NUMBERS NF-5

If you are experiencing engine noise interference in your vehicle that changes pitch or frequency as you accelerate, this may be the solution. The NF-12 is an in-line power lead noise filter. It is rated for 5 amps and is recommended on circuits that have one accessories connected.

Click to read more...

 

[All_Logix 10+ year member]

If I had to guess I would say you have it plugged into the 12v cigarette port.... If that is the case, your getting engine wire from that ground shell on that port...best fix is to hard wire the unit into the car, or run the feed into the antenna of the car with the direct FM relay they make rather than the AUX port

 

[grandmufti]

It is hard wired in. This is true in both cases. Any further thoughts?

 

[grandmufti]

It is hard wired in. This is true in both cases. Any further thoughts? The satellite radio has an FM output. However, I do not know of an FM input into the BMW radio.

 

[All_Logix 10+ year member]

Thats what the direct relay does....drop by your local audio shop and tell them your looking for the thing that runs your sat radio through the ant for better clarity, they should give you a little blue box that says direct FM relay, all you have to do is pop the radio out, hook the ant up and then run the little mini head phone looking jack into the FM port on the sat radio