5 prong din plug to volume control needs TLC as is picky about making connection (green light does light up) which powers everything - small sub with plug in for front / rear etc. via mini jack 3.5 and RCA - i am switching to both receiver and amp set up which negates my needing this via Realtek on computer. I have had to straighten out the din several times; it has seen better day but right for the inspired and not easily frustrated.