Need help with Thump from Locking doors

[Christian C]

Hi. I just installed a 5 channel Amp and after marker stereo in my car. Amp runs the Speakers and Sub. Now I had a problem that whenever I turn the car off the speakers and sub would all Thump so I found out that I could hook the amp turn on wire (Blue wire) from the amp to my accessory/ignition wire (sometimes Red wire) from my car and that stopped the turn off thump... But it did not stop the other thumps I was having that come from all kinds of electrical things in my car like power windows, Power locks, turn signals and so on. So my problem is that I don't know how to wire it so that thump from power windows, Turn signals and so on is just gone. Thanks!

Click to read more...

 

[Christian C]

Fixed my problem by connecting my head unit's ground to my amps ground location. No more thumps.