I have a 01 F150 Extended cab truck with a Jensen CD6112 CD player, and in the backseat of my truck I already have some wires with nothing connected to them and the red and white rca wires from the guy who previously owned the truck, if I get the MTX Thunderform sub like this one http://cgi.ebay.com/MTX-THUNDERFORM-FORD-F150-EXTRA-CAB-97-03-DUAL-8-SUBS_W0QQitemZ390029265227QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item390029265227&_trksid=p3286.c0.m14&_trkparms=72%3A1205%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A1%7C294%3A50#ebayphotohosting
Can I just plug the RCA wires into it and it will work fine? or will I need to use some other wires also?
You will need to run power wire. The link u provided DOES come with some power wire, but its 10 gauge and you should atleast be looking at 8 gauge. Check to see if the previous owner had already ran power wire and ground wires.
But to answer your question.... no, plugging in the RCAs without anything else will do nothing.
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