i was wondering what harness to buy im adding a new hu and sub and im confused on wich one pac or mettra?

 

Both should work but check Wrathernut's sticky shopping list for more info. Basically the PAC ROEM-NIS (doing that from memory, but you know which one I mean) works pretty darn well for everyone that's used it. Some folks have had problems using the Metra 70-7550/7551 but that's a more basic cable plug and some folks haven't had luck getting it to work right on the Bose systems. So there's some chance you'll have better luck with the PAC if you have the factory Bose system.

Personally I'm going with the Metra because I've never had problems with their harnesses, just make sure your connections are good and test it out before you put the dash back together to save yourself a headache regardless of which you go with. For what it's worth I also chose the Metra because I'll be completely bypassing the Bose system when I get enough down time to work on some fiberglass so if it doesn't sound quite right for a couple weeks it's not a big deal to me, and $12 > $35.

 

^ what he said, I went with the Metra also because I have the Bose amp and speakers disconnected.

 

so what if im replacing the bose amp with a better one?

 

Then the Metra 70-7551 is the way for you to go.

PAC ROEM-NIS2 is what you want if you've got the bose amp and intend to keep it.

Metra 70-7550 is if you never had the bose amp and don't intend to get one (sends speaker level outputs to stock connectors).

Metra 70-7551 is if you are adding an aftermarket amp (has RCA connectors for connecting to RCA cables to send to the rear).