bought a avic n3 from ebay, it's missing the following items, do i need all these item, also is the speed and reverse signal lead just a wire?

GPS antenna

10' 30-pin cable

9.75' Extension antenna cable

Power wiring harness

Preamp output harness

16.25' Speed signal extension lead

16.25' Reverse signal extension lead

The last 2 things are the only things on that list you don't need. Those can be extended with ordinary 18 gauge primary wire.

Thats probably going to be like 200 for all those parts. How much did you pay for the n3

$420

that is not bad then. If you can get that stuff and still be under 650, that is a good deal.

anyone got any spare parts for trade or sale?

what about the antenna extension cable? is this a normal radio shack cable

check with ebay user RCH72. just type in "N3 upgrade" in the search. He has a number you can call and ask him about that stuff and probably get you a good deal. good luck