I read the manual on his amp and it said it has a remote 12v pos soft turn on to hook up to a stereo with that function, and since his 8 track doesn't have that he needs to run a 12v fused wire to a switch for the function.
The old 70's Craig amps I have turn on when a current is pulled through them. Which I like because of this situation, so no added wiring!!!!
It is better to have Van'd once in your life, then to never had Van'd at all!