Hey everyone.Today i FINALLY got a chance to upgrade my AVH to an Avic z140BH. At first i tried to simply hook it up to the same power cord that I used for the AVH because it was already connected and fit the avic perfectly. For some reason I got a visual of the screen and was able to play with the functions but wasn't getting sound. so then I went through all the wires on the harness one by one and connected them to the new power cord. I hooked up my amps through the audio output cables and I heard music! here's my problem. After i heard the music, i went ahead and hooked up the gps antenna,