i was wondering if i could run a small jumper wire from the power input on my amp to the rem? something happened in my headunit and the rem doesnt work ive tried rewiring it and wiring it to different wires and my old amp had different settings for turn on so i was fine there. just wondering if i can run a jumper wire from positive to the rem

Unless your amp power is connected to a relay to activate when the key is turned on or a button is switched or something (it probably isn't) the amp will always be on. Regardless of whether the car is on or if the key is in the ignition. This can drain your battery over time which is why the REM lead exists. 

 

Yes, you can do it and not harm the amplifier (most likely). But it isn't smart and it isn't advised. Just a very, very temporary solution

Jake answered your question perfectly.

alright because ive heard of a couple of guys doing it somewhere a while ago and i was kind of confused about it

You could always do it that way and add a cheap switch from radio shack 

Just connect your remote wire to the red or key switched wire on the back

of the head unit. That way it'll only come on when you turn on your car.

Just connect your remote wire to the red or key switched wire on the back

of the head unit. That way it'll only come on when you turn on your car.

That's what I was going to say. so x2