I have a Skoda Octavia mk 2 estate 1.9cc , I have recently bought a new buzzer from e-bay and had it fitted by a Skoda dealer garage. But the sound is very faint and my turn indicators sound faint? His there a way to turn up the volume on both??

I'm surprised a Skoda dealer garage would fit a customer supplied part.

 

The reversing buzzer is in the B pillar on the passenger side and there is no volume adjustment. If it is quiet I'd suggest it is faulty.  It should have no bearing on your turn signal noise as that comes from the dash area.

I asked them to fit it for me do to the distance from the garage, and could not guarantee the item or  to repair it on the day? For I need the car urgently. So they reluctantly fitted it. I will get a new one from a Skoda supplier, that should sort the  problem out? 

Thanks for your help, I will not go down the cheap route again, Leart my lesson.

I bought a cheap one from Amazon back in 2018. It was fine. it cost me £5.79 back then. They are all pretty generic. Easy to fit if you are handy with some basic tools. They either work or they don't.