I am currently using a Radio Shack 12V power adaptor that came with several power tips, an RCA to 1/8inch headphone stereo jack, then a gender changer to plug in the Sony tape adaptor to the empeg. The Sony tape adaptor is the only one I found to work in my stereo, as it has a little piece of plastic in part of it to fool my stereo into thinking it has a tape in it. It rejected the one I used in my old car for a short time.

Overall the quality is below the CD player in the car, but above tape. I just can't wait to get the Mark II and have an amp again though. The quality was so much better.