12 Volt Bike Amp

Hello, I am making an amplifier for my bike.
I set up the bike so I could put a cheap 120-watt car speaker, ipod and a 12-volt battery on it. My ipod obviously can’t output 120 watts, so I would need a 12 volt mono amplifier that can output a minimum of 80 watts and that would not require that many components to add on. I have found a good amplifier but it needed something like 36 external components! (Resistors, capacitors, relays)(Relay acts as a power switch)
If anybody can recommend an amplifier chip for me I would greatly appreciate it.

Thank you Peter