Quote Originally Posted by 350gt View Post
What's the coupling for?

dont you just plug in the V2 into a PC and the head unit? Unless the lite is different, that's the way I updated my elite..
Well the coupling is to connect two male ends together, the rkl has a male end and the sl2 has a male end so the coupling receives both.. do you have it in the box? If so, can I buy it off you or have it? The elite just plugs into the sv2 because it has multiple ports.