ok so when I install back my stock cd player...
1)I install the stock wiring harness

2) install the radio antenna wire

3) (someone said in another forum to splice into the (from the stock harness)blue with gray stripe wire to the remote turn on wire of sub amp)

4) tap into rear speaker wires , run to a line output converter which will feed into the RCA inputs of amp.

Any steps missing? will this frankenstein approach work.. will I get any noise or other crap in my sound system?