I just read some reviews about this amp and though they were generally good, some were pretty bad and for good reason. Supposedly this amp has a 150 amp fuse and draws a shat load of current. Damn, I don't know what to say..... Which audiobahn subs are you going to run and what impedance will they be running at? Personally I think "depending on the models of the subs" it might be a good idea to get a different amp. This is just alot of current from ONE amp. You can get a great amp that will probably put out enough power for your subs that only draws 60 amps or so. If your stuck with this amp you probably do have to use 0 awg wire and you'll be putting alot of strain on your alternator. Do you really want to use this amp, or is getting another one an option? Let me know the model of the subs and I can get a better idea whether or not you need an amp that draws this much current. sorry for the bad news, but this is just my observation and opinion. Just to give an example, I use PPI art series amps in my setup and I believe the A600 draws 60 amps and I'm sure that amp would be more than adequate for your subs "depending on the model".