Hi,

So I have been searching and trying to figure out how to connect my aftermarket Headunit to the factory amp in the boot, the Headunit is connected to all the speakers just fine but I don't get anything from the sub.

I have run rca's from the Headunit to the boot and tried wiring them into the amp input (yellow and black wires) but got nothing, just wanting to know if anyone knows how to get this to work?

Cheers