Want to improve sound in rear. Not enough bass as amp is week. Go alpine Ida 311 Hu powering front. Heard amping rear would improve things on a budget. Then at later date can get new sub box and sub. Was thinking of four channel amp but can I use existing wires for speakers and ignition wire etc. Then just lead a new 12v from battery.
Not looking for mega power. Like a 150 watt amp just to balance front and rear out as Hu is 45 per channel.
Other than that are the later models amps better. I know in 12 amp is bang olfuson. Could do a swap or maybe just with 8v A3