Hello You mentioned that you had retrofitted a '93 Cobra CD player into a '91 GT. I am trying to do the same exact thing. Would it be possible to tell me where you sourced the adapter and other pieces necessary to make this happen? My '91 doesn't have an amp under the passenger seat and I read that the '93 CD player needs an external amp, so I might need to find an OEM 'premium sound system' setup. Thanks a ton, hope to hear back from you.