Alpine 7897. figured out the wiring. put the deck in. before I put my ground on, I accedentaly pressed the open button. and the deck open'd and turned on. as well as played music! but there was no ground connected and the deck was sittin on my shifter so the casing wasnt grounded. hows this happen?

 

your rca's plugged in? can ground like that.

 

did you get noise in the speakers (wine when you are driveing ?)

 

it usually grounds through the ant lead.

 

RCA's plugged in. ant. pluged in. no whine.

dont really care. I still put the ground on. just kind of cool.

 

Similar thing happened to me too, had no ground on my amp even tho it was working, found out when I checked the battery.

 

those Japanese are amazing!!!!

 

Not grounding equipment correctly can kill it.

 

like said above ..most likely grounding through the antennas shield which is grounded to the body

 

Through the antenna is ok but I would still ground it properly just to be safe and make it look good