I'm getting my hands on a Zapco 500.1 referance amp to power my sub. but i'm confused on how to wire the inputs. the zapco PFD manual says that it has SymbiLink™ Balanced Input, and it looks like it has actual plugs, that go into the headunit, but right now i have 4 seperate wires that go into a high level input 4 prong plug, that when into my old kenwood... can anyone help me?

 

I'm assuming the Zapco has RCA inputs right? If so you can convert 2 channels from your deck into RCAs with a converter.

 

this is the only input it has

the single plug goes into the amp and the 2 male RCA plugs go into the headunit. but now i'm pretty sure that the 4 wires for my high level input are just spliced from my 6x9 speakers in the back...