2001 V70 T5 Unused wires in the back

[T5V70]

Hi,

when trying to find out why my in-car phone has no signal I found some unused wires in the back of my wagon. I have attached pictures below. The green and white connectors in the left corner, to my mind, are for subwoofer (power and control), but what's the two smaller ones on the left for? They have small yellow label with L (left) attached on them, and there is a similar one in the right corner with R on them too. Also, is the light grey box in the right corner with two wires for mobile phone or rti? Can't make my phone work, card is found, it shows my number on the dash, but when trying to call it does nothing, trying to call to the car it says out of coverage, so I guess there's something with antenna. Thank you