Connect speaker outputs to your amps speaker level inputs. Connect a line-level adapter to the radio then use RCA cables to the amp. Connect your radio to the amp using RCA cables directly.
How do I connect my amp to my car stereo?
2:064:34How to install a car amplifier | Crutchfield DIY video - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe turn on wire is included in your amp wiring kit. Run these cables behind the dash to your stereoMoreThe turn on wire is included in your amp wiring kit. Run these cables behind the dash to your stereo. The turn on wire connects to a remote turn on lead in your stereos wiring harness.
How do I wire my door speakers to an amp?
11:0415:38Wiring a 2 or 4 channel amp to your stock speaker harness - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou have the option of using a second set of rcas from the rear RCA output to the rear RCA inputMoreYou have the option of using a second set of rcas from the rear RCA output to the rear RCA input you can also just use a single set of RCA.
Can you use any amp for door speakers?
The short answer is yes you should. The reason is that having more power to run your door speakers will make for better sound quality. This is especially true if you have changed your door speakers out, but didnt change out the head unit or any other parts that your car came with.