why wont power on?

ok i have some crappy pyramid amplifer. pb1644. and it wont power on? i know its getting power, the ground is grounded the the computer thats under the seat ( the 10mm bolt) but its not powering on.. i hooked up power and ground, and then power and ground on my head unit, and nothing,... i dont get it, any help? thanks

remote wire hooked up?

head unit has 5 fires... ground(black), left(green), right speaker(grey), power(red), antenna

hooked up the red to the amplifer, and grounded the black

figured it out, remote wire was messed up, all good now

there ya go