Stealth high end audio install in E70 - with a lot of photos

[digiteye]

Originally Posted by X5Mod

Despite the many opinions against the 3Sixty (I'm still not convinced), I'll go with it.

Actually I don't know of any other solution as for 3rd party DSP which can do the trick but it might be my ignorance only on the topic
I have also heard that their 1st attempt with 3Sixty was not too successful but the Mk II belongs to a whole different league.
Anyways, the output of the OEM radio has to be managed - you will see once the 3Sixty will be connected that the radio preset is far from being linear.
According to my guy the best solution would be adding a good radio-preamp (he has mentioned some Alpine and Pioneer models) - he even took a long look at the area of the panorama roof buttons there.... but I told him to chill

[X5Mod]

What (other than sound production) electrical functionality was lost when bypassing the OEM amp? I'm trying to determine if anything more than front/rear/bass/treble, etc. was lost in the install.

The reason I ask is the following: The amp "communicates" to the K_Bus and this connection is lost when the OEM amp is not used. No where can I find what this connection does, but I suspect that it gives front/rear/bass/treble/other? controls. Losing this is not a concern, because the 3SIXTY.2 more than compensates for this.

Thanks.

[digiteye]

I tried and the bass-treble and front-rear are intact. Now they are set to zero (neutral) except from front-rear which was set full front. Actually even my rear speakers are left in (they just were on zero level by the full front setting) and produce funny flat sound (the original one) if I adjust more to rear.
I don't see any functionality missing.
So the signal comes out from the OEM radio preamp towards 3Sixty2 - which was the goal (thats the signal that 3Sixty2 suppose to manage or "flatten").

But for the rear speakers i think the original wiring and connection have left remain.