Need some pointers installing AFTERMARKET NAV in '01 A6 2.7t
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Audiworld Junior Member
Joined: Dec 2008
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Need some pointers installing AFTERMARKET NAV in '01 A6 2.7t
Hi I started pulling everything apart the other day. Got it powered up and have sound.
I've got a Pioneer AVIC-F90BT double din going into a 2001 A6 2.7t (6 speed)
I need some help with...
1) Anyone know where to find the VSS (Vehicle Speed Sensor) for this car and easiest place to tap in.
2) Where's the easiest place to tap in to the reverse signal besides running all the way to the taillights?
3) I've seen plenty of write-ups where they're using the factory grommet near the battery for running power cable. I've seen most people use 4 gauge. Anyone know if 2 gauge would fit, and if I would run into any problems down the door jambs with 2 gauge?
4) HOW THE @#*$ do I stuff all the wires in the back of the deck and still put the deck back in??? Any tricks?
Thanks a million
The Mummy.
I've got a Pioneer AVIC-F90BT double din going into a 2001 A6 2.7t (6 speed)
I need some help with...
1) Anyone know where to find the VSS (Vehicle Speed Sensor) for this car and easiest place to tap in.
2) Where's the easiest place to tap in to the reverse signal besides running all the way to the taillights?
3) I've seen plenty of write-ups where they're using the factory grommet near the battery for running power cable. I've seen most people use 4 gauge. Anyone know if 2 gauge would fit, and if I would run into any problems down the door jambs with 2 gauge?
4) HOW THE @#*$ do I stuff all the wires in the back of the deck and still put the deck back in??? Any tricks?
Thanks a million
The Mummy.
AudiWorld Senior Member
Joined: Sep 2004
Posts: 1,336
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I have 1/0awg run in mine so 2awg should fit.
Most navs don't need the VSS wire. Neither my A6 or my Touareg have the VSS hooked up yet they both accuratly read what speed I'm traveling at(Eclipse & Kenwwod). I guess if you drive in a lot of long tunnels you would need it! Also why do you need the reverse light? Ususally they are for installing a back up camera.....if your running a camera all the way to the back what's 1 more wire..... If no caamera but for some reason you still need reverse I'm sure it's in the drivers kick panel. Getting the HU in will take some nasy words but stay calm and slowly feed the wires where ever they can go and you'll eventually get it!
Member
Joined: Oct 2002
Posts: 21,810
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Answers inside...
1)VSS can be gotten from the factory radio harness of the 8-Pin Black connector. It is pin 1, and usually a Brown wire.
2)Reverse can be gotten by tapping off the switch from your shifter. there is a harness in the tunnel going forward to the dash.
3)2ga. is fine through the fire wall, but why are you bringing it into the door jambs??
4)Depending on the depth of the headunit, and how much wiring there is, you may have to space out the headunit in the dash kit. Some tricks are to reach in from the drivers side under the dash and pull the wires to the left as you are inserting the radio.
2)Reverse can be gotten by tapping off the switch from your shifter. there is a harness in the tunnel going forward to the dash.
3)2ga. is fine through the fire wall, but why are you bringing it into the door jambs??
4)Depending on the depth of the headunit, and how much wiring there is, you may have to space out the headunit in the dash kit. Some tricks are to reach in from the drivers side under the dash and pull the wires to the left as you are inserting the radio.
Thread Starter
Audiworld Junior Member
Joined: Dec 2008
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Re: Answers inside...
Thanks again 5 speed... You're really going to have to send me that invoice! 
I don't specifically have to run through the jambs, I was mostly seeing what has been done. If there's a more direct route from the factory hole in the firewall, do tell. Do you just hug the transmission tunnel all the way back?
I've put stereos in before but never in this car.
I'm also doing everything 15 minutes at a time since I work 70 hours a week, so I figured I'd run cable even though I'm not sure how much I'll end up upgrading.
Thanks
I don't specifically have to run through the jambs, I was mostly seeing what has been done. If there's a more direct route from the factory hole in the firewall, do tell. Do you just hug the transmission tunnel all the way back?
I've put stereos in before but never in this car.
I'm also doing everything 15 minutes at a time since I work 70 hours a week, so I figured I'd run cable even though I'm not sure how much I'll end up upgrading.
Thanks
Member
Joined: Oct 2002
Posts: 21,810
Likes: 3
I ran my 2 ga. down the drivers side. There was plenty enough room..
..to get it nice and snug under the carpet, and under a wire channel that comes from the factory.
I ran my RCA's striaght down the middle, through the console, and out back under the carpet. Speaker wires went down the passenger side.
I'll add this to the invoice
I ran my RCA's striaght down the middle, through the console, and out back under the carpet. Speaker wires went down the passenger side.
I'll add this to the invoice
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