dear all,

As mentioned earlier I got rid of my DSP amp using the procedure described in this thread.
Everything works perfectly and the sound is also great... Until I start the engine.

I tried several LOCS and even purchased the Alto Mobile UI-4 with dedicated balanced-to-unbalanced function. However I keep having problems with alternator buzz. It is not so loud that it is totally unacceptable, however in my opinion alternator buzzez in BMW's do not belong there...

If I disconnect the amplifiers from the UI-4 converter or from the LOC's, the noise is gone.

Would the Jensen ISO-MAX solve my problems????

Any suggestions are wellcome.

many thanks

Michel