so here is the update on the final piece of the puzzle. I was told that I need a sirius antenna splitter. I have the Fakra adapter piece (as advised in earlier part of the thread) and was told that I need to purchase a sirius antenna adapter ( Shakespeare Cable Kits / Antenna Splitter for Sirius Satellite Radio ) and this is the part that is now sold out and I cant find. Do I need this piece or will the Fakra piece suffice or what are my alternatives as I am so close
You will need the splitter as you SIRIUS tuner has two antenna connections (one is down looking orbital signal, the other is for terrestrial repeaters). IIRC BMW required this to improve reception and further reduce signal loss. They have since gone away from this, and the signal differentiation is internal to the tuner. I do not know why, if the SDARS antenna is attached, that the tuners don't work on that signal alone, may have something to do with attenuation or other such witchcraft.Sorry for the delay its been a hectic week. Below are the photos I was able to take:
The bottom two images are wiring that is not reachable. I purchased the new radio part number 65-12-6-988-275 but would I still need to go to the dealership and update the firmware to get this thing working?