I am investigating the possiblity of coverting 2nd generation (D40) US Frontier side mirrors to your 08-up Navara signal/indicator mirrors. I found out there are at least two different size mirrors. US Frontiers are approximately 13cm x 22cm while Navaras are 18cm x 22cm.
I also found out there is a Nissan retrofit PN# of B6165-EB71A that is essentially a chrome cover with the led turn idicators that can be attached to existing Navara mirrors.
My question: Can any Navara owner confirm that indeed your side mirrors are 18x22 cm?
Thanks Neil. Looks like I will be scouring the Internet for late model Navara Signal/puddle/heated mirrors or buying Navara mirrors and installing the retrofit kit.