i have a pioneer avh-p3100dvd

 

i have an amp in my car, and there is no power antenna wire on the 3100 so i have it currently set up as follows

 

blue (on wiring harness)-power antenna

blue/white(on wiring harness)-amp turn on <=====these are all twisted together into one

blue/white (on receiver) - power amp

 

now if i take that blue/white cable from the receiver out of the crimp and wire it to a relay wont it not power the amp?