need help locating speedometer and reverse signal
Thread Starter
Burning Brakes
Joined: Sep 2006
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From: Myrtle Beach, South Carolina
need help locating speedometer and reverse signal
I'm installing a new wizbang head unit/GPS (Pioneer AVIC-D3) and it wants a wire from the reverse light and a wire from the VSS (vehicle speed sensor?).
Can any one tell me where to get to these two signals on a 1988 S4 5 speed?
Thanks!
Can any one tell me where to get to these two signals on a 1988 S4 5 speed?
Thanks!
Former Vendor
Joined: Apr 2002
Posts: 2,260
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From: Corpus Christi
For the speed signal, I used the brown/red wire at the cruise control.
For the reverse signal, you have 2 choices:
GR/YE @ U24 (this is the address at the central electric panel)
or
BK/BL @ U21
Hope this helps
Paul
For the reverse signal, you have 2 choices:
GR/YE @ U24 (this is the address at the central electric panel)
or
BK/BL @ U21
Hope this helps
Paul
Electron Wrangler
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Unfortunately on a manual transmission car there is no reverse signal at the fuse panel. You will need to wire from the Black/Blue wire from the reverse switch on the transmission. Connects behind the plastic cover above the battery box and also behind the tool panel at the rear.
Alan
Alan
Drifting
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From: Hendersonville Tennessee
So, i wired my reverse camera power and the reverse sensing wire to the black/blue wire behind the tool tray, right before the plug to the relay and it all worked as it should. Then, it stopped. I can wire the camera directly to a +12 source and the reverse sensing wire on the radio to +12 and it works fine. So, I assume I blew a fuse or relay, but I can't find it. Everything else seems to work. Reverse lights still work. The other wires at that relay still work as I believe they are for the rear wiper and it still works.
So, anybody know what to check to re-supply power to that black/blue wire?
So, anybody know what to check to re-supply power to that black/blue wire?
928 Collector
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May I butt in with my own question? Lizard replaced my transmission with an 89 5spd unit. Where's the pickup ... on the trans? Wheels? Because I get a speedo fluctuation when I drive over bumps in the road ...
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Joined: Feb 2003
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From: New York
I'm installing a new wizbang head unit/GPS (Blaupunkt TravelPilot) and it wants a wire from the reverse light and a wire from the VSS (vehicle speed sensor?).
Can any one tell me where to get to these two signals on a 1978 5 speed?
Thanks!
Can any one tell me where to get to these two signals on a 1978 5 speed?
Thanks!
Craic Head
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From: Jersey Shore, USA
It probably just uses the VSS for displaying ground speed, in case of GPS signal loss like in cities or tunnels.
To the OP (or rather JPBNY): Sorry, I can't help you on these. I'm sure you can tie in back on the tranny where the original signals come from, but I don't know where inside the car you'd get them.
Drifting
Joined: Dec 2005
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From: ATL, GA w/a 996TT
I think it would be the other way around: reverse signal turns the camera on, no?
It probably just uses the VSS for displaying ground speed, in case of GPS signal loss like in cities or tunnels.
To the OP (or rather JPBNY): Sorry, I can't help you on these. I'm sure you can tie in back on the tranny where the original signals come from, but I don't know where inside the car you'd get them.
It probably just uses the VSS for displaying ground speed, in case of GPS signal loss like in cities or tunnels.
To the OP (or rather JPBNY): Sorry, I can't help you on these. I'm sure you can tie in back on the tranny where the original signals come from, but I don't know where inside the car you'd get them.
Supercharged
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From: Back in Michigan - Full time!
Mine wanted me to hook up a cable to the parking brake in order to turn on the DVD player. I just connected it to ground instead... works fine (anytime).
Former Vendor
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From: UK
So, i wired my reverse camera power and the reverse sensing wire to the black/blue wire behind the tool tray, right before the plug to the relay and it all worked as it should. Then, it stopped. I can wire the camera directly to a +12 source and the reverse sensing wire on the radio to +12 and it works fine. So, I assume I blew a fuse or relay, but I can't find it. Everything else seems to work. Reverse lights still work. The other wires at that relay still work as I believe they are for the rear wiper and it still works.
So, anybody know what to check to re-supply power to that black/blue wire?
So, anybody know what to check to re-supply power to that black/blue wire?
Thanks