I am installing a Pioneer HU in a 1996 Pontiac Firebird. The Pioneer head unit has only 1 lead for the amplifier or power antenna turn on. I was instructed to wire together the Pioneer HU remote lead with both the remote amp turn on and the power antenna turn on.
When the unit is powered on, the power antenna rises and the amp is turned on. So far, so good. When the unit is turned off manually, the amp is powered down and the antenna lowers. Still good. But when the unit is allowed to play until the cars auxiliary power times out and tries to shut off the unit, automatically, then a problem occurs. The problem is: the HU turns off, the antenna lowers, then the HU turns back on after a second or so and the antenna rises again. This cycle repeats itself endlessly. Why is this happening and how do I prevent this problem from occurring?