I have a 2015 Toyota Corolla le, no amp. I bought an aftermarket DVD stereo from HK and want oem swc, backup camera, or anything else I can get from oem.. is there an adapter for this vehicle yet? There are 2 wires key1 and key2 and the sellers told me only one needs to be connected for swc but what I dunno is where it goes into. They said it goes to the original swc wire from my car..Anyone have a diagram for this, or suggest an adapter? Thanks in advance.