for a fist amp its not bad but dont screw your subs over if you have good subs and a bad amp. go with hifonics or somthing good if willing to spend,
either your amp has a short..... or.... you have a bad ground
Only if your amp is rated to handle a 1 ohm load. If it's not you WILL... fry your amp.
i dont know what that is
Ofcourse.
yes you will get more amp cranks out of it and for dodge ram wont do anything bad but good for your truck
Either due to a bad ground or a bad amp.
It will have a HUGE(and bad) effect on the amp's performance. Try running a mile while holding your breath - then you'll understand what the amp is going through with a poor ground.
Yup
It should work with a 20 amp, just not as long. Wipers use a fair amount of current so the factory puts a 30 amp in. Perhaps that particular 20 amp is bad or it blew as soon as you turned the wipers on.
Very likely the starter is bad.
generally no, unless your amp has specific outputs for it... you might be able to rig it to work using cables and converter plugs, If your amp has a speaker extension output, but I seriously don't recommend trying it as I'm pretty sure that only leads to bad things happening... although Im not really to sure, althout its your amp, ears, and headphones your playing with here, not mine...