Hey Ken as you know my car is about to go under the knife again for a number of things, and the situation requires as much coaching up as possible..

Now as for the IsomaX I plan on tapping into the rear channels outputs from the tuner in the trunk so that i would be able to use the fader ..would i then need 2 isomax or will 1 do the trick for both front and rear channels..

Also when you tapped into the rear channel in the X5 for the ability to fade did you also use your homebrew method of "hacking the male end of the rca and wiring the female end" to the wires in the tuner ..