Best 4 channel amp for door speakers Reviews 2023 - YouTube
Need help no sound coming from door speakers anymore : r/CarAV
Amazon.com: DS18 Car Audio Door Speaker Combo with Amplifier - 4 x 6.5 Bullet Midrange PRO-GM6B Speakers with 4 Channel Class D Amplifier CANDY-X4B - Compact Mini Amplifier with Premium Quality Speakers : Electronics