Quote:
Originally Posted by Broadfield
In my experience, which is a lot at this point, CarPC's usually have poor ground isolation. So I'm not surprised if you are having issues. Any decent car audio component will have good ground isolation properties. Which if installed correctly will lead to a noise free listening experience. In the case of the CarPC, the engineers didn't put as much focus on sound quality and noise rejection as much as what Alpine engineers would. So some simple questions first:
- Did you run your RCA's for the amplifier down the opposite side of the vehicle from the power wire?
- Where is your ground for the CarPC and the amplifier?
- If you unplug the RCA's from the amplifier do you still have the noise?
Get back to me and we'll go from there. |
I'm running two amps, one for the front speakers and one for the subs. These two sets of RCA's go from in my glove box to underneath the center console and into the trunk. My battery is in the trunk, but the main power wire runs through the firewall then along the passenger side of the chassis, to the trunk.
The CarPC itself is a "Net-top" unit. Which for example here's a link to one just for reference.
ViewSonic - VOT132 - 2 GB RAM - 1.6 GHz
The unit I do not have a separate ground on, only ground I could think of is the ground that runs through the power adapter. [Looks like a laptop adapter] Which I have running to a cigarette lighter power source mounted under the dash.
The RCA's I have not attempted to unplug and see. I did run a switch in-between the remote signal wire of the amps so I can turn them off when the PC is off. That was the only thing I could think of to do to get rid of the noise while the PC is off. Would that kind of be my only route to go?