I have a 2008 ford escape xlt and I'm trying to upgrade my stereo. Bought a Pioneer MVH-S600BS and the new dash piece and a wiring harness that best buy said would work. Got it all wired up and it won't come on. 2 of us checked the wiring again. Everything else still works. They told me I only needed the antenna adaptor if I planned on using am/fm which I don't. Also I don't have a nav system or the steering wheel radio controls. Any ideas?