I have a 2001 dodge cummins with the stock sterio. I have just bought subs and an amp and want to get them hooked up as soon as possible. I have read that there are RCA output converters that you pull your sterio out of the dash, unplug the wire harness, plug the converter in and then plug the harness into the back of the converter an it has the RCA outputs on the sides. I was wondering where could i find one that would work for my truck without going to a sterio shop. A web address would be great. THanks 