I'm trying to install an Alpine CDE-149BT using the Metra XSVI-6523-NAV kit. I'm coming from a RA3 in a 13 Express RCSB. No steering wheels controls. I've checked all my crimped connections and they all appears tight. Only wire to Alpine not connected is power antenna lead. I don't have the SWC harness attached since not retaining controls. The unit occasionally spins the cd, but won't power on.