i want to know if anyone knows where i can buy a dvd rom navigation system for my 99tl i want to upgrade the one i have, also do they just swap out i mean the same wiring

 

I got mine off Ebay - and yes, they swap right in with the same exact wires and connections

 

i tried ebay couldnt find any

 

well you will see them every once in a while - just keep checking

 

If I replace the pcmcia navigation system with the new DVD ROM system can I use the same in dash screen that I used with the older pcmcia system?
Are there any adapters needed?

 

no, the new dvd drive should plug right into the existing connectors

 

Did you see https://acurazine.com/forums/car-parts-sale-361/sold-stock-navi-4-sale-cheap-320490/

 

There were 2 codes that came in the manual. One is for the Navi, the other for the radio. Do these codes change when I change the navi system? How do I get the new codes?
Thanks

 

I think the codes for Navi will change because the navi code depends on navi-unit. The seller of your navi will give you the code (if not ask for it), or else you could ask your seller to provide you a document that shows you bought the unit and bring it to either Honda or Acura dealer. They will able to provide you the code but you have to show them the document that you bought it not stole from someone.