Car Decks Games Recommended Amp Power?

Recommended amp power? - car decks games

I am a bit new to the game for audio, but I have no idea. Anyway, I just got a new platform for my car and 22W RMS decided Im, a series of Alpine 6x9s with 85W RMS put (already) and either a set of component 6 1/2s 6 1 / 2s coaxial or two have a 80W RMS (they do not need help, not the choice of the 6 1/2s). All speakers are rated at 4ohm Then I have to be 80 years old, founded some 85 states in the rear, they should be running, maybe an amplifier. In view of a 4-channel amp to buy, but Im not sure if I should do something with an RMS RMS remained higher or lower per-channel speakers. What do you recommend good?