[MidLifeZ]

While installing stereo stuff, what is the carpet covered thing by battery? It is moveable, held in place by velcro...

whirs every now and then.. even with car off (and key in ignition to ACC position)

 

[EspritNOOB]

Sound like a place where the PO hid his/her vibrator and forgot to turn it off?

 

[S4Denver]

vacuum pump

 

[MidLifeZ]

vacuum pump

AH! That is what I thought.. ran battery dead working on car and after putting on charge with key in ACC it was pumping away for a bit...

 

[G8nightman]

Make sure you don't have a leak.

 

[MidLifeZ]

Make sure you don't have a leak.

Easiest way/tips on checking

While in car tonight, engine off, key in ACC - while I was adjusting the stereo and amps the pump ran continuously

 

[G8nightman]

It should run till it builds up the right pressure then stop. Make sure you didn't pull out any vacuum lines while pulling the wires for your amp install