Re: Amp Installation / Old School Amp / Cheater Amp Help?
For a short run, 10 gauge would be fine for that amplifier as it is only rated to produce 200 watts RMS @ 4 ohms bridged. If you are running the wire from from front to trunk, I'd recommend 8 gauge wire or possibly a 4 gauge kit if you are planning on running additional amplifiers. As for it being a cheater amp, I think they were only 30% underrated, so it's not like you are looking to get 1,000 watts RMS out of a 100 watt amplifier. Then again, the amplifier I am thinking about is the Opti Drive 100 as I can't recall a plus model from memory.
Unfortunately, you will be limited to 2 ohms stereo (100x2) or 4 ohms bridged (200x1) with that amplifier. That is, assuming it is the amplifier that I am thinking about.
As for connecting it, that should be very simple:
Red wire goes to 12v positive. I'd recommend a 20 to 25 amp fuse to be safe
black wire goes to chassis ground
Remote goes to the remote output lead on your HU or a switched source that turns on and off with the vehicle
to bridge use the amplifier's Left positive and connect it to the positive terminal on your speaker; amplifier right negative to the negative terminal on your speaker
I used to swear by old school car audio gear, now I swear at it!