Wiring 30 watts power amp is not that easy

But I'm done. Time lapsed and done. Was able to buy another power amp for one of my dota 2 player friends who is trysikad driver as his profession. His somewhat 20 watt power amp got busted and I found it defective IC and after 3 different stores inquired, component is not available. Wew! So I bought another brand of power amp indoor type rated 30 watts and 12 volts. Needs wiring so I have to make it as a power amplifier for the defective amplifier which is now act as pre-amp and it works after knowing it's configuration. Don't have time to know their brands and the defective IC (Toshiba TA820AK not sure hehe). It works!