i'm thinking of buying this rex but something in the ad bugs me.


"the only problem is that when the car is off you have to disconect the battery if the car is going to be of for more than 20 min"

 

Something electrical draining the battery.
Typically an aftermarket radio and amp wiring incorrectly.
Can be factory things too that you would have to hunt down.
No way to guess at it - people locate the problem by basically disconnecting fuses and things and see if the battery draining stops.

 

...wtf.

 

yea if its wired 4 subs that would be the best place 2 start

 

thanks for the input

 

Yep, the car has was called a "parasitic draw" if you don't know how to use a DMM or it isn't something obvious you're going to need someone to figure it out for you.