Avic N2 in 2002 Boxster

[rctboxsters]

Originally Posted by gjin15

Hello,
I had an Avic N2 installed into my Porsche Boxster by Circuit City. There is a constant buzzing noise from the time I turn on my car and when I turn on my headlights there is static noise. Is anyone experiencing the same problem? Or does anyone out there know what the problem might be?

Also,
does the Porsche Boxster 2002 come standard with AMPS? THANKS!!!

I recently had the Avic N2 installed in my wife's MDX and the same problem happened. It turned out that the installer used the stock amp which creates the engine noise. Bring it back to the shop and ask them to use the deck's amp.

Did you also get that deal with Pioneer? The $ 200.00 rebate for the installation and the free portable GPS with bluetooth?

Make sure to get that because if you purchased the unit before September 5, you are eligible to get that promotion.

I also consider about installing the same unit into my box but decided to wait to see how the portable GPS is. If it does not work out that well, I will go with the Pioneer 9800 since it has built in bluetooth function for my cel.

[chiefsalami]

Definitely yikes... I would not let Circuit City or any installer like that touch any of my cars, especially the Porsche. It's so easy with just buying a snap-in harness and doing the install yourself. By the way, how's your FM radio performance? I have had several VWs and they require an antenna booster because if not the radio (particularly AM)

That said, your problem sounds like alternator whine, which has been said here is due to crappy grounds. You could try the internal radio amp, but I wonder whether this unit even has amplified outputs - a lot of the naviagtion units don't because so many cars have built-in amplifiers anyway or people also have upgraded audio systems. Also, you have to go through the car's stock amp to be able to use the built-in speakers. If you are replacing the whole system, then run a new amp and speakers with good wire and bypass the stock amp.

As far as the grounding problem, Radio Shack sells a little device called a ground-loop isolator. That will significantly cut down on ground-induced noise, so take a look at that - it's pretty cheap.

[gjin15]

Hello,
Thanks for all your replies...
What do you mean by "deck" amp? Does a 2002 porsche boxster come equipped with this?

What is the diff between a "stock" amp and a "deck" amp? And also, he thought it was a ground problem too.. so he grounded it to the chassis of the vehicle.. it decreased the noise significantly but there is still a buzzing noise.. furthermore.. yes the noise does increase as I accelerate

Thanks again

[boomer8800]

how about some pics??

[chiefsalami]

By "deck amp" aka preamp, they are referring to the radio's built-in amplified outputs (which generally will be like 30Wx4 max, which is crap). But like I said, a lot of these navigation units don't even have amplified outputs - don't know about the N2 specifically. The stock amp refers to the car's built-in audio amplifier (part of the Bose system, for example) that handles amplifying and distributing the sound to the stock speakers.

If you're still getting a buzz, especially when accelerating, you definitely have a ground loop problem and really should get the ground loop isolator. Circuit City, Best Buy, etc. installers don't know **************** about how to install something the right way, and just rush through the installs anyway.

[gjin15]

Okay, I will try the ground loop isolator. THe circuit city guy told me today that it would cost 70 bux to rewire all the wires to the "deck" amp.. i don't know if this is right.. is this hard to do? Thanks for all your help

[TriGem2k]

Originally Posted by gjin15

Okay, I will try the ground loop isolator. THe circuit city guy told me today that it would cost 70 bux to rewire all the wires to the "deck" amp.. i don't know if this is right.. is this hard to do? Thanks for all your help

I wouldn't do it. I would keep my car as far away from Circuit City as possible.