I don't know how I missed this forum for as long as it has been in existence. I am older member of DIYMA and used to be more active there. I drift in and out of mobile audio stuff depending on what goes on in the rest of my life. I am a EE and have been playing with mobile audio for a very long time. My first head unit was a then-revolutionary cassette deck made by Panasonic. That should date me. I am a big fan of vintage Soundstream amps.