Are all of the wires already there to install the factory navigation in the dash. I wanted to know if I have to get harnesses as well as the hardware for this install. How difficult is this upgrade if possible?

 

The unit itself should come with its wires..... but... you would need adaptors to install it if your car isn't a 2005 or whatever the model accord you are getting the unit from!

 

I am presently in the process of doing an OEM 2005 Navi install into my 2003 V6 4DR.. I have everything running on the workbench just need to install into the car. I know that a 2003 does not come pre-wired and from what I can tell neither does any of the 2004 or 2005 cars. My Haynes manual covers from 2003-2005. Be sure to get the Electrical Troubleshooting Manual. It is around $50 and has all the infomation you need..

Here are some links someone who did the install.. I plan on taking pics of the install and with some time do a writeup with pin outs etc for a sticky.. If you need any help shoot me a line I have been messing with this stuff for weeks now and have a pretty good handle on what is required to make things work...

Accord install:

http://www.v6performance.net/f...47583

TSX install: Similar and shows some good pics also:

http://www.acurazine.com/forum...92466