so its come time to gut the stock bose system on an '03. any advice for wire size. I'm putting in alpine PDX-1.600 and PDX-4.100 amps. (1000Watts combined and, 140amp. max. draw.) this is powering alpine type-R's: components in the front and coaxials in the rear with a 12"sub. I was thinking 2gauge power and ground for the main run, split to two 4gauge for each amp. 12-gauge speaker wire for the sub, and 14-gauge speaker wire for the mains. any thought on those numbers and also recommendations for the wire. I work at west marine part time, so i can get all marine grade wire and breakers/fuses. I was thinking of using the marine grade wire for power and ground and the fuse/breakers because i can get that for cheap, and using streetwires for the speaker and RCA since they are supposed to cut down on 'noise.' there's a couple of different grades of RCA cable by streetwires each claiming to better cut down on 'noise.' i don't know if i need to go with the top of the line.

 

Those sizes sound right. Some may say certain sizes arent necessary but I would run those sizes. I believe I am running similar. You only wire your car once, do it right the first time.

 

A helpful blueprint...

http://www.the12volt.com/info/recwirsz.asp