When I bought this car, it already came with the pioneer deh-p4700mp. Recently, i bought http://cgi.ebay.com/ws/eBayISAPI.dll...%3DI%26otn%3D2 and when i plugged it in, i cannot access the aux. When i press function, i only see BSM as an option. I also know that my cable came from hong kong so it might be that i have a faulty wire. I just want your guys' advice on what I can do now.