Hello all , I have been trolling here for awhile and just signed up today . I have a base model 2010 sportage with the cd/sat . I just obtained a dvd/gps touchscreen radio from a 2009 Rondo . I installed it today in the sportage and all went well , other than the sound coming from the speakers . It was really low sound . Even at the 35 level . Im assuming this unit will require an aftermarket amp to the speakers? I also seen an additional 2 pin plug next to the 3 sets of plugins. I did not have this xtra plug . ( It runs vertical to the 3 horizontal ). Maybe this is the plug in for the internal amp? Im really don't know and am asking for advice and direction. Thanks for looking and any future help!!!