factory sub, strange sound

[wet_willy]

i managed to hook up the factory sub, but am confused because when the stereo comes on i hear a "thump" from the sub, i am not sure, i hooked up everything to the deck, any ideas

 

[corrado15]

Check this thread...

http://www.explorerforum.com/forums/showthread.php?t=192312

D.

 

[wet_willy]

thank you i will try that, i just have never had anything happen like that in my other vehicles, i appreciate that.