Auxiliary RCA Inputs

I've been searching the web for an auxiliary input adapter that includes both audio and video. After seeing the CoastalTech Ultimate IPod, I got interested into doing literally the same thing, through a cheapier solution. What it sounds like is that you buy the Ultimate Lockpick for $230, and this gives you rca connections. Then you buy the Valor iLink system for $120 and connect it to these rca connections. My problem is, I can't justify spending $230, almost twice as much as the iLink, for what is basically an adapter. I do not need any of the functions of the lockpick. Anyone have a hopefully cheap solution to this problem?