2003 BMW 745i -XM radio problem

ive seen this "static" problem with several pioneer modulator units both xm and cd. The modulator does not correctly cut out the radio frequency and instead only tries to broadcast over it, hence the poor quality. I believe this is a bad batch from the factory, as subsequent shipments have not had the same problem. It has nothing to do with the antenna adapters or the quality of the installation.

The problem is  I'm getting the same result from the more expensive Alpine unit. This unit, accd to my installer is of better quality. But, we ended up with the same problem. I have 3 other cars with XM radio & they have no sound or static problems. It seems the BMW 745 has so much electrical wiring that the only way they were able to get it static free was to litterally move the modulator unit outside the car! Apparently BMW doesn't have an input plug directly into the radio. Very frustrating!Thank you

B. feinstein

I don't know why I didn't think of this before, but.....does your BMW have a CD changer?  If not, you could almost definitely use a Blitzsafe or equivalent input adapter to hook up alpine and pioneer xm tuners directly, without doing any fm modulated stuff.Ethan

-----

"Patience, persistence, and perspiration make an unbeatable combination for success"

Donate to the12volt.com