RCA Adapter

[LLS]

So I bought this RCA adapter from Ebay. I know 4 wires connects to the speakers, but I got no idea where the black one goes to.. any help guys?

http://i45.tinypic.com/e5ph5f.jpg

Cheers

[MR808]

Its for earth to cut engine noise from the RCA's

[LLS]

Thanks :thumbsup: