Amp+Fuse+Sub issues PLZ help

hi every1,

just been fittin my fusion sub in today and ive got a problem thats really confusing me, as i know of everthing is wired up fine but when i start ignition the sub isnt working but when i remove the fuse from the amp and put it back in it starts to work again really confused.

help would be appreciated greatly

new fuse and check all connections

try you remote cable or try shorting your live onto you remote for sub if it works its your remote
if light flashes on then off maby fuse put a 30A or 20A one in make sure ur earth is really good back of a light or on you spare wheel holder thingy majig if all eles fales pm me and il have a look btw what sub is it? fusion tube?

right i been pissin about with it for about the last 4 hours and have finally foud a small solution.

when i turn the ignition on with music playing the sub doesnt start at first and the protection light is on (the red light) but the when i turn the ignition off if i flick it back on quickly it seems to work god knows why this is i am completely confused why.

and then it is the same situation with starting the car, when i start it at first nothing happens but then if i push the key again (as in to start the engine even tho it is already on) the head unit resets and boom the amp is amp-ing away lol and the sub is pounding.

if someone can possibly tell me what the hell is going on her id love it cus im baffled lol

thanks guys

have you wired the remote cable yourself, ie not plugged it into the HU but custom wired it ??

yeh i did it all myself but im sure everthing is wired fine cus power is gettin the the amp fine so im just not sure whats goin on