As i have to remove the HU again shortly to fit the correct facia, I plan to to a line booster in to get some volume back.
From what ive read on here, I only boost the front speakers?
Im still not 100% sure on the RCA connections either.
The red/white from the ICT cable is obviously front speakers.
We then only have the yellow/black RCAs from the ICT.
Currently they are pluged into the rear speaker output on the HU.
This leaves the SW output on the HU with nothing connected.
Should i get an RCA splitter and split the yellow/black and plug into the rear speaker outputs and the SW outputs on the HU?