so i just retrofutted mt e39 with a gen 11 bt module... it connects up fine and links with phone great...only thing is i can hear absolutely nothing??? any ideas? i have the old ound pin bm24 headunit... thanks
I just put a BT retrofit in my car. On the harness that connects the unit to the main power ( I think it's a 25 pin) there is a single wire with a male plug. Near the 25 pin plug there is a 3 pin female jack. The wires are Red/Brown/White. The single wire plugs into the white female. This got me sound and VR.
Glad to see you are making progress with the bluetooth. I gather you were able to connect the supplied 54 pin harness to the module and to your car's harness?
Look at the 25-pin harness on your car. Is there a wire in slot 21?? . This is the pin for telephone off/on - it's possible your car's harness doesn't have a pin there. So, the car has no way of shutting off radio and engaging speakers for phone.
You may want to check all of the pins to make sure they line up correctly. This may be helpful:
Hi Guys, i did not buy the oem harness, as i found it extotrionate. the aim of the execise was to keep costs as near the parrot kit with steering controls as possible. I have followed this guide ÜberMpower • View topic - Custom DIY OEM Bluetooth Harness. and so far everyhting works (without sound) i am using the bm4 unit as opposed to the bm54 unit which the guide states. i have contacted the author and he is giving me a hand. So far ive managed to get ULF gen 11 £80, wires and plugs £30, button £2, Mic, Aerial, cable, £55, harness £10.... so the total rings in at just under £180 which is less than a quarter of what bimmernav want for the kit....
Did you use the oem loom? also are the plugs you are referring to on that loom?
will try to get a pic... i put a speaker on the output + and - of the ulf module and no sound came through that either... is that normal? aso what this about these wires further up the thread? and do people on here with the bm24 unit and dsp have the retrofit working ok?
Still no joy - in my trunk I have a black plug with 6 round pins and another black plug with 16 or so that are connected to nothing? Is this relevant? Also I have still no joy, do you guys know if you have to do anything special with the digital dsp system and bm24?
Not things I have done directly. Maybe someone else chimes in.
I do have the bm24 radio, dsp, and the bluetooth retrofit working properly.
Here's my thoughts.
1. On putting a speaker directly to the module, seems like a good test to make sure the module is working. But, is your module even hooked up to the i-bus yet? Is "telephone" appearing on the NAV screen? Is your module even hooked up to power yet? If no, how do you know the module is even on. If no, how can you pair any device to the module and test with it? In short, I don't think the speaker direct to the module is a good test at this stage (it will be later if there are issues).
black plug with 16 or so that are connected to nothing
Sorry yes everything works with the unit except sound, phone is all paired up an appearing on nav screen... I dialled my friend then pit the speaker out in it ... I will check later maybe take a pic if I can... The wiring for the dsp plug says : 2- Low freq. negative (-) signal - Transceiver/charging electronics
11 Low freq. voltage (+) signal - Transceiver/charging electronics
Does that sound like the sound input from the bt to you?
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