wiring harness
#2
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Welcome jjjberg, what MY is your Q7?
Is your Q7 pre-wired for tow hitch?
Do you already have the Audi 7 pin connector?
If so then all you need is this adaptor
![](http://www.etrailer.com/merchant2/graphics/00000001/pics/T/C/TC-701.jpg)
This version may be even better
http://www.etrailer.com/Wiring/Valley/V39008.html
If you want electric trailer brakes then perhaps they are referring to the Trailer control module and Trailer harness (part numbers via Q7 spreadsheet if you need them) and you still need a controller like Tekonsha Prodigy P3.
Any more info you can give may help.
Is your Q7 pre-wired for tow hitch?
Do you already have the Audi 7 pin connector?
If so then all you need is this adaptor
![](http://www.etrailer.com/merchant2/graphics/00000001/pics/T/C/TC-701.jpg)
This version may be even better
http://www.etrailer.com/Wiring/Valley/V39008.html
If you want electric trailer brakes then perhaps they are referring to the Trailer control module and Trailer harness (part numbers via Q7 spreadsheet if you need them) and you still need a controller like Tekonsha Prodigy P3.
Any more info you can give may help.
Last edited by Jusforfun; 06-08-2011 at 03:00 AM.
#4
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This one is considerably cheaper. Doesn't have the test beep, but is that really needed?
http://www.elecdirect.com/product/ee...b9eb14cd4.aspx
http://www.elecdirect.com/product/ee...b9eb14cd4.aspx
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Let us know what you have on the car right now.
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I did call a place that installs trailer hitches and they said they have a way around this issue of the $600 box and 5hrs install time. they tap into the wires and use a seperate power source. This guy says with the low voltage LED lights this is the answer. Will I regret this, is my MMI system vunerable.
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I did call a place that installs trailer hitches and they said they have a way around this issue of the $600 box and 5hrs install time. they tap into the wires and use a seperate power source. This guy says with the low voltage LED lights this is the answer. Will I regret this, is my MMI system vunerable.
#10
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We recently purchased a used 2007 Q7 which has the factory hitch. To the left of the receiver is a wiring harness with an odd 7 pin connector which seems to be for an RV (Pollak 11-933). The 7 to 4 adapter shown below in this thread won't work because the 7 pin end doesn't match what I have. Here is a pic - any ideas as to how I can adapt this sterange 7 pin to a 4 pin? Any suggestions would be appreciated:
![](https://www.google.com/imgres?q=pollak+7+pin&um=1&hl=en&sa=N&rlz=1T4TSNP_enUS459US459&biw=1140&bih=492&tbm=isch&tbnid=NfGdsoFUZ_JP5M:&imgrefurl=http://forums.vwvortex.com/showthread.php%3F4005593-Trailer-hitch/page2&docid=dwZpa-918LYArM&imgurl=http://farm4.static.flickr.com/3229/2998583914_0b9e9b8d76.jpg&w=500&h=333&ei=PlDRTozzI6Tk0QHc9bku&zoom=1&iact=rc&dur=422&sig=114570226316813780873&page=5&tbnh=125&tbnw=175&start=47&ndsp=12&ved=1t:429,r:8,s:47&tx=138&ty=32)