Nice Y, but shouldn't have needed it
Crutchfield Customer Review (What's this?)
Works as intended but should not have been needed. Was suggested by Crutchfield help to connect a single RCA sub-woofer out to the 2 RCA in of the KSIL adapter for the Kicker hide-a-way sub. A better solution to my mind would have been a longer Y that could be connected to the head unit on one end and the sub on the other. Better still would be for it to have RCA female on the Y end so that I wouldn't need F-F couplers to connect it.
Pros: Well made
Cons: shouldn't need it