Hello, I have an 05 G35x non-bose and will be installing aftermarket radio and speakers. My question is, is there separate wires for the tweeters at the back of the radio/ factory harness, or is the tweeters incorparated into the front speakers. Why I ask is because I will be amplyfing the doors but wanted to connect the tweeters to the radio, I will be using the Metra 70-7550 harness. Also where can I get a wiring diagram for the stock harness.

Simplifed: If I run front speaker wires and rear speaker wires to an amp, will the tweeters also be amplified. Are they on the same wire as the front door???

 

are the tweeters on the same wires as the 6.5 in the front door in reference to wires behind the radio.
does front left and front right include the tweeters in reference to harness

 

are you getting coaxial speakers or components? since you want tweeters and you're amping, Id HIGHLY suggest you go with components. they come with crossovers and sound much much better than coaxials. The price will reflect (tho its worth it).