In the 6th gens there was no power antenna... nor is there a remote turn on wire from the deck... meaning the stock deck is not capable of turning a seperate amplifier (or bass tube) on and off... you'll need your own switch

If you go with an Infinity BassLink, and use the high level inputs (which you'll have to do) the BassLink turns itself on and off by sensing the audio signal... makes life easy!