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-   -   Bluetooth wiring help in 2001 E53 (https://xoutpost.com/electronics/bluetooth/92174-bluetooth-wiring-help-2001-e53.html)

frozenwaffles 04-11-2013 09:19 PM

Bluetooth wiring help in 2001 E53
Hi guys, I'm hoping someone can help me out here...

I have a 2001 E53 with a manufacture date of 2001-02-11.
My car says it came with S640A option.
I have upgraded to 16:9 Board Monitor.
I have added ULF with the BMW Genuine DB25 to ULF adaptor.
I have upgraded to MK4 Nav.
I have also now just upgraded to BM53 Radio with BMW Genuine Adaptors.

My problem I have is still the very low volume of sound coming from ULF to the stereo. I have noticed in older cars you need the ELK amp. However I was reading that if you upgrade to the BM53/54 you don't need this amp.
Despite upgrading the Radio module, its still very low! Unusable low...

So would I be right in saying that the Telephone + & - wires that are coming out of the ULF are currently incorrectly wired straight to one of the front speakers?
Should I be 'interrupting' these two wires and sending them to Pins 6 & 12 on X13649 on the BM53?
I currently don't have an eject box or harness at all in my car. by putting one of these in with the correct harness, would that 'fix' my problem?

I look forward to hearing your suggestions/ideas :)

n_sievers 10-16-2013 08:09 AM

Not sure if you got this resolved yet but the older audio system does require the ELK amp if the car does not have DSP.

frozenwaffles 10-16-2013 07:53 PM

It is resolved :). I haven't had time to details the method, but you don't need the ELK amp provided you have a BM53 or 54 radio. Was all very easy in the end...just three wires...

n_sievers 01-12-2015 01:10 PM

Would you happen to have the details on connection without the ELK amp as I would like to eliminate mine if possible. I do have a BM53 installed.

frozenwaffles 02-14-2015 07:15 AM

Yes ill post up soon for you....

n_sievers 02-14-2015 10:48 AM

Thank you in advance.

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