Finally I've gotten it setup perfectly. Took about 4 hours to do it, remove the seat and so on. The 8 gauge wire works alright with the 60A inline fuse.
I've yet to get a 40A inline fuse yet. I know, I know, I'm pushing my luck. I'll get it tomorrow. Now I just need to spend more time tuning it to sound good. Any ideas here?
As per what Bro Kippo has mentioned, the fuse near your battery is to protect the whole car from electrical fire. Therefore, the proper fuse/cable size must be correct. the amp fuse should be the one protecting the amp. The same case with HU, they also have fuses to protect the equipment.
The way the main fuse protects you is if there were a short in the main power line, the battery will be shorted, without the fuse, a lot of current will flow through the cable an eventually melt the insulator. The high current also release a lot of heat, hence, there is risk in fire. A 60A fuse can be used as long as your cable (length/size) can handle that 60A current. By using a 40A fuse, you'll need to change it again when/if you upgrade you amps. So, if you have plans for upgrade or to be flexible, use the biggest wire gauge you can afford. One time do the wire from battery to distribution block. Then any amp can be installed later through the distribution block.
A no brand 4 gauge wire cost around RM12 per meter in Penang (HW shop). So, try look around in KL, you should have more choices :D
hrmmmm....iszit neccessary to put fuse before the battery...??
since i'm not using any...just straight from battery to amp...
It is necessary for your own safety and your car's safety. I accidentally blown a fuse when I DIY install my amp. the fuse was 60A. If there was no fuse, I might have cause an electircal fire. When the fuse blows, it is not like your 13A fuse (only see the string burn). This is more like the fuse really blows :P. So, to protect your car, yourself, your equipment and your loved ones, install a fuse between your battery and amp/s.
