RX300 and Car Pc Help Please

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Jun 9, 2007 | 06:41 PM

swj123

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Driver School Candidate

Joined: Jun 2007

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From: Iowa

RX300 and Car Pc Help Please

Hello All, I am needing some advise on something. I have been reading and reading to no avail. I have done the Ipod mod on my RX300. I cut into the wires near the external cd changer and put in a 4 pole relay like I have seen posted on the forums. When I plug my Ipod in it sounds fantastic. Near cd quality. No noise or hum when paused. Pefect. But when I try to plug the aux input into my Car Pc's internal sound card there is noise and it sounds very bad. I understand it's because the RX300 is balanced audio and the Car Pc is unbalanced audio. What I need is a device to put between the Aux in and the Car Pc so the audio is matched perfectly. So I am asking for suggestions for the best device to buy. (or Build)
For your info I have the Mini-ITX Epia M10000 with Xenarc 8" touchscreen
running Roadrunner. Thanks, Mike

Jun 9, 2007 | 09:49 PM

Tranman

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From: Ohio

Well, the humming is because there is a ground loop when you connect the CarPC to your Aux input...you have two options here.

One, try to ground the CarPC and related components to a single spot in hopes of getting rid of the humming.

Two, just put a ground loop isolator (Radio Shack) in between the AUX and CarPC output and that'll be the end of that. The only issue with using a ground loop isolator is the fact that it reduces the range of sound frequency...but it's not a big deal unless you are one of those geeky audiophiles...