I don't know if this is helpful or not..The previous owner of my My08 Lib GT. Had the Mcintosh removed and bought the aicon controls out of a different model and installed an awesome Alpine system head unit and a pocket.. It has USB, Bluetooth, CD, AUX, Radio and an awesome phone kit that enables you find contacts and make calls with the stereo buttons, ext mic etc.. It has an Alpine AMP under the passenger seat and a 12" sub peaking into the cabin via the fold down rear seat armrest opening... Sounds fantastic... There is also a Garmin Navigator installed so a single din head unit is all that was needed. Both units are software/maps updatedable..