I just got a Jvd box from Travis G trying to get to work on my truck I got/had a comp box on it and plugged the wire tap from the Jvd to where my comp box was tapped and it doesn't appear to work my question is does Jvd box tap into to the same wire as the comp box does/did any info would be much appreciated I know this is old school technology but I been looking for this for awhile n finally got one and am dead set on getting it to work