how do you hook up 2 batterys to car,one for amp and the other for car and neon,do i need better alternater?how do i do this?

 

not to sound like an *******, but try the seach option, this has been covered before, and you already started this topic already and have a reply, you get the best results if you only post a new topic ONCE.

Link to other thread --> https://www.cobaltss.net/forums/electronics-audio-video-49/how-run-battery-amp-1-car-120543/