Digital Radio Central - Sponsored by TSS Radio
  DRC Home Page DRC Forums Contact Us  
 
SIRIUS Backstage Forum
 
 
 
  Sirius Satellite Radio XM Satellite Radio iTunes/iPod Slacker Pandora  
 
 
FAQ Members List Calendar Search Today's Posts Mark Forums Read  
Go Back   SIRIUS Backstage Forum > >
Visit Digital Radio Central

Notices

Install Garage & Help Desk You've got the radio, now which cable goes where? Got questions about factory installed radios in your car? Ask any installation or help questions here and someone will get to you soon.

 
 
Thread Tools Display Modes
 
 
Old 08-11-2004, 03:31 PM   #1
mrudie
Just Tuned In
 
Join Date: Aug 11, 2004
Posts: 6
mrudie is on a distinguished road
Default HELP! Audiovox PNP2 interfering with Lexus RX300 GPS signal.

Hello all... I'm new here, and hoping someone can help me out!!

I have a 2001 Lexus RX300, and have had XM in it for quite a while with a Pioneer tuner with NO problems or interference with my GPS signal for my Nav system.

My wife got me Sirius for my birthday, and I was all excited!!
She got the Audiovox PNP2 tuner and an Audiovox CK1 vehicle docking kit. It was installed on top of my dash just above the LCD screen for the Nav system.

Ever since I've had the Audiovox unit installed I have trouble getting my GPS signal. I first noticed it when the nav system was NOT tracking my car properly, and noticed the GPS Signal indicator light was NOT on.

I took it BACK to Best Buy, and they double checked their install, but said it must be satellite interference of some kind and that they two might not work together.

I am totally bummed!!! I LOVE Sirius, and I love the Audiovox tuner with it's awesome display (I hated the display on the Pioneer XM tuner), but I it really sucks that it knocks out my GPS signal.

I posted this problem on ClubLexus, and someone there pointed me to ClubXM, and someone there pointed me here (THANK GOODNESS - AWESOME SITE!!!).

Can anyone offer ANY advice out there how to get my Sirius Audiovox PNP2 tuner to work without knocking out the GPS signal on my Lexus???

I have a few days before my 30 day return policy wears out at Best Buy, but I'm hoping to figure this out before I have to return the Audiovox PNP2 tuner and go back to XM.

Someone on the ClubXM site mentioned that they had this problem with their Lexus when they got one of the first Delphi Roadies for XM, and that Delphi came out with a version that CORRECTED the problem and all you had to do was contact Delphi and they would switch it out at no cost.

I have not seen anywhere that Audiovox is doing something similar.

Can anyone help me!?

Thanks!!
mrudie is offline  
 
 
Old 08-12-2004, 06:03 PM   #2
will_m
Mixologist
 
Join Date: Oct 03, 2003
Location: Glen Burnout, MD
Posts: 337
will_m is on a distinguished road
Default

Hmm, I have a stand alone Garmin V GPS and Sirius PNP1 in my Jeep. Both are VERY close together and I have NO problems whatsoever with either.

Find the antenna for the GPS and see how close it is to the Sirius antenna.
will_m is offline  
 
 
Old 08-12-2004, 07:35 PM   #3
artynj
Loyal Listener
 
Join Date: Jan 11, 2004
Posts: 221
artynj is on a distinguished road
Default CK-1

The FM transmitter in the CK-1 dock is jamming the GPS signal- (harmonics or something)Try a different frequency or re-locate the CK-1 away from your GPS unit.Find an installer that will hardwire the sirius into your existing car stereo OR get an inline FM modulator and use a regular cradle.....take the stereo mini plug to RCA adapter and go into your new INLINE fm modulator.
Remember it is probably that pesky CK-1 ....so print this out and take it to an installer that knows what he /she is doing....They will get it-
artynj is offline  
 
 
Old 08-12-2004, 09:46 PM   #4
jimnedna
Just Tuned In
 
Join Date: Aug 12, 2004
Posts: 7
jimnedna is on a distinguished road
Default

Fm Modulator on the CK1 is the cause. If you can, use a direct connection to your radio via the RCA plugs to your AUX in, and turn the FM Modulator off under "menu", or use a remote antenna for your GPS, like I did for my Magellan Roadmate 700. I had the same problem as you, but didn't have an AUX input on my stock GM radio. Problem gone.
Jim
jimnedna is offline  
 
 
Old 08-12-2004, 11:58 PM   #5
will_m
Mixologist
 
Join Date: Oct 03, 2003
Location: Glen Burnout, MD
Posts: 337
will_m is on a distinguished road
Default

Other than anecdotal evidence, is there any other proof of this?
will_m is offline  
 
 
Old 08-13-2004, 12:17 AM   #6
Jeremy
Sirius Star
 
Join Date: Nov 18, 2003
Location: Clarksville, VA
Posts: 4,173
Jeremy is on a distinguished road
Default

I love how everyone always pulls the trigger before finding a target! First step in troubleshooting is to split the system and find the cause. So first, turn off the SIRIUS radio, does the GPS work? If yes, it's the radio, if no, take it to Best Buy (if they can't fix it, inform the manager he's paying for a dealer visit for you.) they mucked up the install (and SIRIUS and GPS signals are not interfering. I've run both in the same car, no problems. The brainless install tech was feeding you balonna when he made that up from thin air. I'd have laughed at the guy myself.)

If turning off the radio allows the GPS to work, try turning on the radio and go into your Menu and turn off the FM transmitter. Does the GPS work? Yes, Call Audiovox. If No, Call Audiovox.

You have to determine the cause before we can truely help you.

A Best Buy tech should have done this... but they are idiots, I had one tell me the Antenna wasn't covered under the extended warrenty at all, even though its in the box, then the store manager told me he wouldn't cover the defect (the connector on the end pulled off) because it was physical damage. i'm still a bit ticked at Best Buy over that one...can u tell?
Jeremy is offline  
 
 
Old 08-13-2004, 02:07 AM   #7
dantodd
Top Dog Member
HELP! Audiovox PNP2 interfering with Lexus RX300 GPS signal.
 
Join Date: Aug 04, 2004
Posts: 3,665
dantodd will become famous soon enough
Default

There are 4 likely places you are getting interference (assuming the sirius system is the problem):

1) The sirius receiver itself may be radiating enough rf to impact your reception
- easy to test, just turn off unit, be sure to check the other options first though or you won't know which is the culprit. If it is the PNP unit you'll have to move it or shield the GPS rec. which may be immpractical


2) The FM modulator could be causing your problems.
- easiest to test, just turn it off from the menu system. If this is the problem try all frequencies or go to AUX inputs. An external FM modulator MIGHT work.


3) The sirius Antenna is radiating enough energy too close to your GPS antenna
- First unplug the antenna with the PNP on and see if the interference goes away, if so try moving the antenna around on the roof and see if you can find a place with no interference. If this is it just remount the antenna where it isn't interfering.


4) You are getting some strange coupling between the antenna wires
- If unplugging the antenna gets rid of the interference but you still get interference no matter where you move the antenna try plugging in you home antenna and see if it interferes. If it doesn't interfere, even when in the same location as the existing antenna it's probably the wiring.
If this is the case you may have to reroute the cable.


Hope that helps.
dantodd is offline  
 
 
Old 08-13-2004, 05:43 PM   #8
mrudie
Just Tuned In
 
Join Date: Aug 11, 2004
Posts: 6
mrudie is on a distinguished road
Default

Hey Everyone!! Thanks for some of the feedback in here....

Okay, I've been doing some more testing, and here is some of the things I've found out....

Unfortunately, I do NOT know where the GPS antenna is located in the Lexus RX300, but I believe it's in the dash behind the diplay screen.

If that's the case, it's JUST BELOW where I have the CK1 installed.

Here's some of the things I've tried:
Turning OFF the FM Modulation - Can't tell a difference. It's intermittent at best.

Turning OFF the PNP2 tuner - This is also hit or miss, but seems to be very intermittent - sometimes the GPS signal lights up right away, other times it doesn't come on at all.

The last thing I've tried seems to be a pretty accurate tale of what's happening. If I remove the PNP2 unit from the CK1 cradle altogether I get the GPS signal, and it stays on UNTIL I put the PNP2 back in the CK1.

So... my theory is that it's the Audiovox unit sitting on TOP of the GPS antenna causing interference with the GPS signal... problem is, I LOVE where it's mounted.

Do I have any choices or options???
mrudie is offline  
 
 
Old 08-13-2004, 09:11 PM   #9
will_m
Mixologist
 
Join Date: Oct 03, 2003
Location: Glen Burnout, MD
Posts: 337
will_m is on a distinguished road
Default

Quote:
Originally Posted by mrudie
The last thing I've tried seems to be a pretty accurate tale of what's happening. If I remove the PNP2 unit from the CK1 cradle altogether I get the GPS signal, and it stays on UNTIL I put the PNP2 back in the CK1.

So... my theory is that it's the Audiovox unit sitting on TOP of the GPS antenna causing interference with the GPS signal... problem is, I LOVE where it's mounted.

Do I have any choices or options???
DING DING DING WE HAVE A WINNER!!!!

Seems you are blocking the antenna. No matter what you put up there, you will get poor GPS reception.

Here is your option:

http://www.panavise.com/f/comm/indas...98317709528810
will_m is offline  
 
 
Old 08-13-2004, 10:27 PM   #10
jimnedna
Just Tuned In
 
Join Date: Aug 12, 2004
Posts: 7
jimnedna is on a distinguished road
Default

See if your Lexus dealers has a remote mounted GPS antenna for your car. Worked for me.
jimnedna is offline  
 
 
Old 08-14-2004, 03:43 AM   #11
dantodd
Top Dog Member
HELP! Audiovox PNP2 interfering with Lexus RX300 GPS signal.
 
Join Date: Aug 04, 2004
Posts: 3,665
dantodd will become famous soon enough
Default

If the CK1 is not plugged in at all does it still interfere?
dantodd is offline  
 
 
Old 08-14-2004, 11:31 AM   #12
jimnedna
Just Tuned In
 
Join Date: Aug 12, 2004
Posts: 7
jimnedna is on a distinguished road
Default

By the way, my vehicle was is a Chevy Trailblazer. I had made a custom mount out of wood in front of the auto trans shift lever. The PNP2/CK1 was mounted right next to the Magellan Roadmate 700.
When I took it out for a test drive after the install, I figured "Ah, looks pretty nice,...except for the boxy, clunky look of the PNP2....let's check it all out" That's when things were fishy. The GPS wouldn't update my position or give me instructions on when to turn. Being my usual engineer self, and realizing most tech type people at the retail stores and even at the manufacture's 1- 800 #'s are woefully inexperienced, I started the troubleshooting.
Shut off PNP2 in CK1...GPS regained consciousness.
Turned on PNP2 in CK1...GPS becomes expensive piece of crap.
Repeated this a few times, same result

Very bad to pay much money for something you told the wife would make it so she won't get lost again, and then it tells her she's in New Jersey, when she is in CA.

I installed the same mounting setup in my wife's car, so we could transfer the PNP2 and GPS between our cars. We could then use the PNP2 and GPS in either car, by just popping the GPS or PNP2 out of the cradle(s) and moving them to the other car. ( I bought an extra car mounting kit and used it in my wife's car for the PNP2, and ordered an extra GPS mounting cradle for her car as well)

TheGPS didn't work in her car, either, unless I shut off the CK1 FM transmitter, and used the cassette adapter. I also have an extension GPS antenna I will put in her car, which is a solution I already told you about, and will let both these units work next to each other, for us, with the CK1 blasting out with its fm.
jimnedna is offline  
 
 
Old 08-14-2004, 01:58 PM   #13
mrudie
Just Tuned In
 
Join Date: Aug 11, 2004
Posts: 6
mrudie is on a distinguished road
Default

Quote:
Originally Posted by dantodd
If the CK1 is not plugged in at all does it still interfere?
It only interferes when I have the PNP2 in the CK1 cradle. Just turning off the PNP2 or cutting power to the CK1 does NOT help.
mrudie is offline  
 
 
Old 08-14-2004, 01:59 PM   #14
mrudie
Just Tuned In
 
Join Date: Aug 11, 2004
Posts: 6
mrudie is on a distinguished road
Default

Quote:
Originally Posted by jimnedna
See if your Lexus dealers has a remote mounted GPS antenna for your car. Worked for me.
I think this is the answer I will look for. I LOVE where the CK1 is installed, and would rather NOT move it - plus it would cost me MORE money because I don't want to do it myself - already paid Best Buy $50 for the install. Another problem is that I do NOT know where the GPS antenna even IS.
mrudie is offline  
 
 
Old 08-14-2004, 05:25 PM   #15
will_m
Mixologist
 
Join Date: Oct 03, 2003
Location: Glen Burnout, MD
Posts: 337
will_m is on a distinguished road
Default

Quote:
Originally Posted by jimnedna
By the way, my vehicle was is a Chevy Trailblazer. I had made a custom mount out of wood in front of the auto trans shift lever. The PNP2/CK1 was mounted right next to the Magellan Roadmate 700.
When I took it out for a test drive after the install, I figured "Ah, looks pretty nice,...except for the boxy, clunky look of the PNP2....let's check it all out" That's when things were fishy. The GPS wouldn't update my position or give me instructions on when to turn. Being my usual engineer self, and realizing most tech type people at the retail stores and even at the manufacture's 1- 800 #'s are woefully inexperienced, I started the troubleshooting.
Shut off PNP2 in CK1...GPS regained consciousness.
Turned on PNP2 in CK1...GPS becomes expensive piece of crap.
Repeated this a few times, same result

Very bad to pay much money for something you told the wife would make it so she won't get lost again, and then it tells her she's in New Jersey, when she is in CA.

I installed the same mounting setup in my wife's car, so we could transfer the PNP2 and GPS between our cars. We could then use the PNP2 and GPS in either car, by just popping the GPS or PNP2 out of the cradle(s) and moving them to the other car. ( I bought an extra car mounting kit and used it in my wife's car for the PNP2, and ordered an extra GPS mounting cradle for her car as well)

TheGPS didn't work in her car, either, unless I shut off the CK1 FM transmitter, and used the cassette adapter. I also have an extension GPS antenna I will put in her car, which is a solution I already told you about, and will let both these units work next to each other, for us, with the CK1 blasting out with its fm.
Maybe the Magellen has issues too.

Like I stated before, I have a Garmin V and both units are in VERY close proximity to each other. I have never had an issue with the GPS not working with the CK1.
will_m is offline  
 
 
 

Go Back   SIRIUS Backstage Forum > >


Digitalradiocentral.com




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 02:32 PM.
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO v2.0.39 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
All Content Copyright SIRIUS Backstage. All Rights Reserved. SIRIUS and registered trademarks are the property of SIRIUS Satellite Radio, Inc. The opinions posted on SIRIUS Backstage website and forums are those of the individual posters and/or this website and are not necessarily the opinions or positions of SIRIUS Satellite Radio, Inc.