I have all used in good condition and all tested working:

4:3 head unit running 1/63 firmware
DSP amp (3 plug)
Mark 3 (I believe) nav cd player (round button no DVD logo) with software CD US
6 changer OEM
and C43 Radio unit.....

Looking to sell all together, make offer.... Please do not ask me how much... I will take first reasonable offer. Can take payment via credit or debit through my self employed business.

All came out of 2000 540i I believe the nav unit was upgraded and is year 2002 it originally came with Mark 2 I believe