ok i have an alpine V12 amp MRV-F400, 4 channel ~55-60 RMS. Now I want to know if I hook up the 6x9s and the 4x6s to 2 channels and bridge the other two for a 10"tube would it be too much for the amp? Also maybe get a 10" tube and a another 2 channel amp around 150w RMS bridged could I hook it up to the exsisting 8 guage(??) wire or would should I run another one(I don't like ripping apart my interior to put wires in.)

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1987 Black 305 TPI 5spd IROC, seems to be fully loaded, but can't find RPO codes.

AIM: IROC 5spd
http://www.geocities.com/chevy5spdiroc/87Roc.htm

 

Technically, you should be able to get away with a 2 channel 4x6/6x9 setup because the V12 should be 2ohm stable. But the real question is whether you would want to. Not only would you lose the ability to fade your four speakers, but you would also not be able to adjust the gains on the amp to accomodate the output differences between the two sets of speakers. But technically it will work, so if you try it out and like the sound, that's all that really matters.

As for adding another amp, it's a really good idea to upgrade to 4 gauge cable in order to maximize the power draw and keep from hurting your amps. I mean, you're going to be splitting the wire from the battery into two 8 gauge wires for your amps, right? 4 guage just makes a lot more sense, and if you run the wires along the passenger side edge of the car, it shouldn't be too much of a chore.

 

Ok, how did you get around the wheel well into the plastic door jamb thing on the bottom, that is the hardest part of running the wire. Oh, and i ran the speaker wires overhead? Is that ok?

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1987 Black 305 TPI 5spd IROC, seems to be fully loaded, but can't find RPO codes.

AIM: IROC 5spd
http://www.geocities.com/chevy5spdiroc/87Roc.htm

 

I'm not sure what you mean with the door jam and the wheel well, but having the speaker wire overhead should be alright. Anything that keeps them away from the power wire will be okay.