I have factory NAV and DSP. I removed the CD changer and NAV unit at the back of the car. So now where is one supposed to connect the fakra cable in the back and the front of the car? There's also the long antenna cable. I ran it from the front (female side) to the back of the car (male end). Where is it supposed to be connected? Can't find any place where these two cables go in the rear of the car. Please help, I'm stuck!

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'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M.