Tapping into rear speaker/sub's from the trunk
I have a 2008 M3 sedan with premium audio and can't seem to find the exact answer I'm looking for in "Search".
I have a setup from my old car, its a OEM 10" Kicker powered sub from my old SRT8. It has a really easy wiring harness, that needs to be grounded, connected to the battery, then has self tapping connectors that need a signal from a positive and negative speaker.
Does anyone have a diagram of where I could tap into some speaker/ sub wires from the trunk?