You have several problems.
This:
And this:
from the look of the 54pin plug, you car was wired for BITII or TCU
*****NOT**** BT, you need to start again and sort the wires out.
This is a **FULL** list of the pins for the ULF.
1 - Microphone - Positive Input signal
19- Microphone - Negative input signal
21- Microphone - Shield
11- Eject box - Cradle on
22- Eject box - +12v
32- Eject box - Pair
39- Eject box - Gnd
34- Telephone ON signal [Compensator] [signal amp power]
36- Ground [Ground splice] [Slpice to pin 12]
15- I-bus signal line [Input to radio, pin 9 of x13646 quadloc]
17- Terminal 30 voltage supply [Fuse F57] [+12v Battery] [Slpice to pin 15 of x13646 quadloc]
33- Telephone ON signal [Input to radio, pin 11 of x13646 quadloc]
{{ if you have OEM DSP, send to DSP instead}}
35- Voltage supply terminal R [K3 Unloader relay, terminal R] [+12v Ignition] [Slpice to pin 16 of x13646 quadloc]
36- Ground [Ground splice] [Slpice to pin 12 of x13646 quadloc]
51- Telephone mute signal [Slpice to pin 10 of x13646 quadloc]
{{ if you have OEM DSP, send to DSP instead}}
37- Front loudspeaker + [Voice input to radio, pin 6 of X13649 12pin block]
{{ if you have OEM DSP, send to DSP instead}}
38- Front loudspeaker - [Voice input to radio, pin 12 of X13649 12pin block]
{{ if you have OEM DSP, send to DSP instead}}
52- Nighttime illumination signal [Terminal 58g splice]
Also you have OEM DSP so this makes thing more difficult, and you will need to check the wires to the DSP amp.
The pinouts for the DSP 18 pin connector are:
2- Audio in from ULF negative (-) signal - ULF pin 38
11 Audio in from ULF Positive (+) signal - ULF pin 37
13-Telephone mute signal - ULF pin 51
15-Telephone ON signal - ULF pin 33