can anyone tell me what this is?

[Tom G.]

Originally Posted by DouglasABaker

If you were driving an E39 I'd say it was the power and sub connection to your subwoofer as well as a digital coax. Since you're in an X5 I'll say I don't know on the big black one, but I'm sticking with digital coax on the little round one.

Doug

The Digital DSP portion is in relation to the amp - not the radio. The picture is part of a dual diversity antenna system.

[DouglasABaker]

I agree that the DSP is handled in the amp, but the CD Changer is connected to it via a coax cable, so I thought this might be related.

In any case, I missed the "pass through" portion of the connection, so I stand corrected

d-

[polardaddy]

I have a 2000 x5 it had dsp cassette and changer, yanked out the changer, and head unit, had to run all new wires from the head unit back to the factory amp to tap into wires back there. bought an adapter from bmw- usa style antenna. cd, ipod work great, but reception completely sucks!, tore the whole back half of my 5 apart today, found the antenna and its little set up. any ideas how to remedy the recption?

[Tom G.]

Originally Posted by polardaddy

I have a 2000 x5 it had dsp cassette and changer, yanked out the changer, and head unit, had to run all new wires from the head unit back to the factory amp to tap into wires back there. bought an adapter from bmw- usa style antenna. cd, ipod work great, but reception completely sucks!, tore the whole back half of my 5 apart today, found the antenna and its little set up. any ideas how to remedy the recption?

Since the original harness was modified - it will be difficult to diagnose without seeing the vehicle beforehand. I would recommend bringing the X5 to an experienced installed for troubleshooting.