You could get one at radioshack, target, wal-mart, or partsexpress.com. They're not very hard to find. The adapter will retain all the sound quality that a dedicated headphone jack input would. A lot of newer CD players have ipod interfaces that allow you to not only charge the ipod, but control it directly from your ipod. The difference in sound quality is inaudible at best.I think SSS link is what I want. Where would I get a converter for RCA's to headphone jack? Radio shack? Would this compromise sound quality versus a tuner with the jack in it already? not sure since mine seems to have an AUX function on it I guess. Do most new head units change the MP3 player while playing? Since mine won't, how long do they last while playing? Can you get a cig. light charger while it's playing?Sorry for questions...
Dave
First link is FUBAR, but I agree with the device in the second link. I would take the line outs at the bottom of the IPOD over the headphone jack any day of the week!http://cgi.ebay.com/ALPINE-AUXILIARY-ADAPTER-REPLACES-KCA-121B-ALP-AUX-A1_W0QQitemZ360101117324QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item360101117324&_trksid=p3286.c0.m14&_trkparms=72%3A1234|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A1|293%3A1|294%3A50
http://cgi.ebay.com/CAR-RADIO-AUDIO-IPOD-TO-RCA-AUX-IN-INPUT-ADAPTER-CABLE_W0QQitemZ320344144595QQcmdZViewItemQQptZOther_MP3_Player_Accessories?hash=item320344144595&_trksid=p3286.c0.m14&_trkparms=72%3A1234%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A1%7C294%3A50
put these two together and you got it made your ipod will charge and the only thing you would have to do is control the music from the ipod but the volume works from the headunit