JBL factory nav replacement

[jay22]

2003 limited JBL 10 speaker with nav. So I'm replacing the factory JBL nav unit and replacing with an in-dash BOSS BV960NV. I bought the Axxess TYTO-01 wiring interface to retain the factory jbl amp and set up. I'm having trouble finding a wiring diagram for the factory set up. Basically the Axxess interface has one connector and there are 7 connectors on the JBL nav head unit. I would like to find out what the other connectors are for. I know some of them are for the external nav located in the back of the truck but I want to wire it correctly and retain as many features as possible. Any more info would be greatly appreciated.

 

[J-Roc]

I used the Pac Tato for my Pioneer unit. Works great, was also able to keep the steering wheel controls. Best I can come up with for you is some of the color codes for the wires on the factory unit.

 

[J-Roc]

http://www.toyota-4runner.org/engin...r-wiring-diagram-permanent-host-location.html

 

[J-Roc]

Hope this helps