Adding factory NAV in a non bose/monsoon H3

[UNOMYFLO1]

Has anyone added a factory nav unit in a non bose/monsoon equipped H3?

I have a small external 4 channel amp and a factory nav setup coming head antenna and disc.

I want to use a pac harness adapter so I do not have to cut anything factory if that is even possible.

I have read somewhere about the speed sensor wire perhaps not being in the factory radio harness and needing to be routed from the pass kick panel to the back of the nav head?

Can anyone school me on all info needed PLEASE!

I currently have the stock single disc head unit which has amplification built into it.

I know others have added the nav to the monsoon systems however I know they have a factory amp mounted in the rear quarter panel next to the monsoon sub. Again I do not have this system

Any help would be greatly appreciated.

Thanks
UNO