ok the other day i wired another battery in my trunk. well i was driving today and my car like shut off the like back on. it did it a few times and when it did it it turned the check engine light on and the cruse light on. well i took it home and unhooked the second batt. and it hasnt done it again so i think it was the problem. now when i wired it from 1 batt to 2 batts i unhooked the + wire from my amp and put it and another wire in a batt. terminal and i put a ground from the car to a batt. terminal and hooked the extra wire from the + terminal back to the amp. and that worked. its like having + from the 1st batt to the + on the second batt and then from the 2nd batt to the amp. and like having the 1st and the 2nd batt grounded to the chassis. is this right? its in parallel so it should b but i think this is my problem. maybe 2 batts r too much for the computer? idk. what if i instead of the + on the 1st batt to the 2nd +. what if i do alt. to the 2nd batts +? if u need me to explain it differently ill try lol thanx a lot
idk.. my knowledge on batteries is minimal.. i've been told not to run different batteries without an isolator.. but i've also been told all kinds of junk that was wrong
so hopefully someone here will know.. i'm really confused
