Originally Posted by
Chucktown_1843
If you go from a stock head to an aftermarket head, you can go down to best buy and get an adapter and still use your stock amp. On the back of the stock head there will be a five or six prong cable, the new adapter plugs into that and has 4 RCAs(FR,FL,RR,RL) and an amp turnon wire. Plug those RCAs into your new deck and connect the amp turnon wires. The adapter set also has a new wire harness. plug it in onto the existing one. off of that all you need to connect is the Power, ACC, and another one i cnt remember. the groud out the deck and your done. The RCAs run though the amp to the speakers so youll still be using the amp