Has anyone removed 1 series trunk liner exposing SAT wire harness?

[firechicken99]

I am looking to install the SAT radio into my 1M which is satellite ready. I pulled the center cover out as it was the easiest and found the trays for the SAT and other options receivers right behind the back seats. I didnt see the wires and wanted to ask if anyone had experience in removing the panels and found the wires on the left or right side before i take the whole trunk apart

I am familiar with their placement in 3 series but this car has a different arrangement....

Thanks for your help!