Visteon HD Tuner + G35

**jsm11482** · 09-26-2011, 04:32 PM

Hi, I just installed the Visteon HD tuner in my G35. The antenna in my car is integrated in the rear windshield. After installation I tested the tuner and it works, but not great. Stations that I KNOW come in clear normally are not coming in at all - or barely, not enough to make out any music or voices. A few stations do come in okay. I think only one HD station comes in.

I'm in the DC metro area so we should have plenty of HD stations. I'm wondering if I need to power the antenna. Can anyone shed some light on this?

Thanks!

**kegobeer** · 09-26-2011, 07:00 PM

Did you install the Visteon in-line between the antenna and the amp (rear windshield antennas normally have some sort of amplification device), or did you install it after the amplification amp? I have mine after the amp and it works great. It's also important to route the included antenna wire away from noisy electronics, as it can definitely pick up interference.

**jsm11482** · 09-26-2011, 08:23 PM

It is installed where the HU originally met the antenna. But then it's wired above the passenger side foot well and attached to the Visteon box in the right-side of the footwell, behind a panel. Perfect fit there. I'll mess with the wire placement and see if that's the issue.

Thanks for the feedback.

**chris350** · 09-27-2011, 01:29 AM

I have a nissan maxima, the rear windshield antenna is powered. when you removed the factory unit its no longer turns on the antenna amplifier. what you need to do is find the wire diagram for your car and find the antenna power/turn on wire. I had the same problem, although it did make the radio work better, i think those windshield antennas that nissan put in are total crap for these visteon tuners... i think they need a un-amplified aerial antenna... I havnt tried it on my car yet...one day... but anyways find the wire that powers the antenna, then jump a switch power wire to that wire and you should be set...

**jsm11482** · 09-27-2011, 10:31 AM

I'll see what I can dig up, thanks.

**jsm11482** · 09-28-2011, 06:23 PM

From looking at the wiring schematics for the audio harnesses I've found the wire that is labeled "TO AV-W/ANT" which I assume means "to windshield antenna." So I need to give this one some power. Would I hook that up to the remote wire (e.g. what goes to the amp), or ignition/accessory 12v?