hi i have a 2000 v6 mustang and i am trying to install a alpine HU.

behind my radio i have one 8 pin one 6 pin and one power pin plug.
i have the cd player underneath with an amp under the cd player.
NO i do not have a MACH system.

i removed both the cd player and the original head unit.(they both worked perfectly before.)
i have installed the 8 pin and the power pin harness off my original head unit radio onto my new alpine radio.The HU turns on but no sound any ideas how i can fix this i've tried everything.

 

mach system? did you connect teh blue wires? the remote turn on with teh deck needs to go to the amp turn on in the hrns.