inputs.text: good utilitarian solution incar audiovideo - video switcher good budget friendly way solve confusion hooking aftermarket audiovideo equipment car situation two independent headrest monitors sirius backseat tv separate dvd player car stereos one auxiliary input sirius radio ipod no easy way handle found product installation advanced comes 4 av cables remote external ir sensor not come power leads harness connector anything like theres simply 3 screws hardwiring 12v connector youd rather plug power socket youll still buy power adapter separately hardwired please note tried test power connection moving installation discovered hard way display unit lights connect least one av cable without av cables connected no way knowing youve connected power correctly thats not problem means save time continue installation setup works perfectly 4 inputs sirius radio ipod connector [ [ asinb001th8o7o isimple is76 mediawire ipodiphone interface cable ] ] sirius backseat tv [ [ asinb000x7ytlg audiovox sirius scv1 backseat tv audiovideo tuner black ] ] simple portable dvd player 3 outputs car stereo 2 backseat headrest monitors remote complicated unavoidable matrix setup like sharpie helped bit wish came stickers something ease labeling essentially one row output one button input total 16 numbered buttons takes single buttonpress switch output input theres no guesswork cycling inputs driving still not wifeproof sound quality fantastic icant tell loss quality splitting also already ground loop isolator circuit think device built turn unit no sound playing notice noise drops slightly noticeable nearly silent