Does any one know if the interior wiring is the same from '05 TSX as '04? I want to convert my non-navi '04 TSX to navi and I don't want to go through the process of installing new wires. I will probably buy an 04 or 05 TSX w/navi for parts and I want to replace the whole interior wiring. I know the part numbers are different for 04 w/navi and 05 w/navi tsx, but what is the difference between them? is just the XM radio or there is something else I don't know? Also does the navigation system works from '05 to '04?

Thanks in advance

 

i think its all the same wiring. there should be a plug in

 

There are some existing threads on conversions. Check them out.