I've had help from neighbour trying to connect my mp3 car stereo. We had live connection and got it working as whoever did wiring made mess of it? Now unsure if speakers actually work in car or if they've been taken out! Tried to get panel off drivers side speaker but cannot as after unscrewing it won't budge. Can anybody advise me please??

is it's the door speakers they just pop off. there is metal retaining clips.

be careful they can fall in side the plastic