Odd Amp Grounding Behavior

[gkeller81]

I recently hooked up my amp and sub in my 2001 Deville using an loc from the rear deck sub wires. After some trouble I scraped the paint off a spot in the trunk and grounded there and when I plugged in the ground to the amp it worked fine.

After turning the car off for 5 minutes or so I came back out and turned it on and no sound, but the amp was on. I took the ground wire out of the amp and plugged it right back in and it started to play again. At this point I figured I just had a bad connection going in the amp.

Then I went somewhere for about half an hour and it stayed on the entire time with no problem. Came home and turned the car off. Came back a little while later and turned on the car and the same thing. No sound, but amp was on. Did the exact same thing - took the ground out of the amp and plugged it back in and it started to play.

At this point I got suspicious so I proceeded to turn the car off, leave it a few minutes, turn it back on and every time without fail I would have to reseat the ground wire in the amp. If I only leave the car off for a short time (maybe up to a minute) it will work fine when turning back on but anything longer than that and I have to redo the ground at the amp...I am perplexed. Any ideas for me?//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

Click to read more...

 

[Millertime1028 10+ year member]

Almost sounds like the amp is going into protect . Id check all connections . Do you have any friends that would let you hook up the amp in their car to see if its the amp or not ?